Exhibit 2.3

                                OPTION AGREEMENT

         This Option Agreement (this "Agreement") is entered into as of this 4th
day of December, 1997, by and among Magellan Health Services, Inc., a Delaware
corporation ("Magellan") and Paul G. Shoffeitt ("Shoffeitt").

                                   WITNESSETH:

         WHEREAS, Magellan, John T. Lincoln ("Lincoln"), Shoffeitt and Care
Management Resources, Inc. (the "Corporation") entered into that certain
Shareholders Agreement dated February 6, 1997 (the "Shareholders Agreement");

         WHEREAS, Magellan and Shoffeitt desire to set forth additional
agreements as between themselves, which shall not affect or impair the rights of
Lincoln or the Corporation under the Shareholders Agreement;

         WHEREAS, Shoffeitt is the owner of 30,000 shares of the Corporation's
stock, which shares represent all of his ownership of shares of the Corporation,
and which represent 7.5% of the total number of issued and outstanding shares of
stock of the Corporation on the date hereof;

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth herein and other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, the parties hereto, intending to be
legally bound, do hereby covenant and agree as follows:

1        SHOFFEITT'S PUT RIGHT

         1.1   At any time during the period commencing on November 1,1998 and
ending at the close of business on November 30, 1998, Shoffeitt will have the
right to sell Magellan, and Magellan will agree to purchase, Fifteen Thousand
(15,000) shares of the Corporation's stock, in consideration for the issuance of
a number of shares of Magellan's common stock which shall be determined by
dividing Five Hundred Thousand Dollars ($500,000) by the average closing price
per share of Magellan's common stock on the ten Trading Days immediately prior
to the second Trading Day preceding the date on which such stock is to be
issued; provided however, that the number of shares of Magellan's common stock
to be issued shall be adjusted appropriately to account for stock splits, stock
dividends, recapitalizations or other events affecting the number of issued and
outstanding shares of Magellan's common stock, which occur after ten Trading
Days on which such average closing price per share is based.

         1.2   At any time during the period commencing on November 1, 1999 and
ending at the close of business on November 30, 1999, Shoffeitt will have the
right to sell to Magellan, and Magellan will agree to purchase, Seven Thousand
Five Hundred (7,500) shares of the Corporation's stock, in consideration for the
issuance of a number of shares of Magellan's common stock which shall be
determined by dividing Two Hundred Fifty Thousand Dollars ($250,000) by the
average closing price per share of Magellan's common stock on the ten Trading
Days immediately prior to the second Trading Day preceding the date on which
such stock is to be issued; provided however,





that the number of shares of Magellan's common stock to be issued shall be 
adjusted appropriately to account for stock splits, stock dividends, 
recapitalizations or other events affecting the number of issued and 
outstanding shares of Magellan's common stock, which occur after the ten 
Trading Days on which such average closing price per share is based.

     1.3   At any time during the period commencing on November 1, 2000 and 
ending at the close of business on November 30, 2000, Shoffeitt will have 
the right to sell to Magellan and Magellan will agree to purchase, Seven 
Thousand Five Hundred (7,500) shares of the Corporation's stock, in 
consideration for the issuance of a number of shares of Magellan's common 
stock which shall be determined by dividing Two Hundred Fifty Thousand 
Dollars ($250,000) by the average closing price per share of Magellan's 
common stock on the ten Trading Days immediately prior to the second Trading 
Day preceding the date on which such stock is to be issued; provided however, 
that the number of shares of Magellan's common stock to be issued shall be 
adjusted appropriately to account for stock splits, stock dividends, 
recapitalizations or other events affecting the number of issued and 
outstanding shares of Magellan's common stock, which occur after the ten 
Trading Days on which such average closing price per share is based.

     1.4   Notwithstanding anything to the contrary contained herein, the 
period within which the options described in Sections 1.1, 1.2 and 1.3 may be 
exercised may, at Shoffeitt's election, be delayed and extended as provided 
in Section 4 below, but in such event, Shoffeitt shall continue to be 
entitled to exercise the rights set forth in this Section 1.

     1.5   Notwithstanding any other provision of this Agreement to the 
contrary, no merger, reorganization, reverse stock split, recapitalization, 
consolidation or any other event (a "Reorganization"), shall in any way 
reduce or diminish the number of shares of Magellan's stock which Shoffeitt 
is entitled to receive upon the exercise of his options under this Section 1 
or upon the exercise of Magellan's call option under Section 5, or the amount 
of the cash consideration which is payable to Shoffeitt if Magellan elects to 
pay cash to Shoffeitt under Section 1.6 or Section 5, or otherwise reduce or 
impair any other rights which Shoffeitt has under this Agreement.  
Notwithstanding any such Reorganization, Shoffeitt shall be entitled to 
exercise all of his rights under this Agreement, including without 
limitation, the option to sell and transfer to Magellan (in which event 
Magellan shall be obligated to purchase) his original shares of the 
Corporation or such substitute securities as he may then hold as a result of 
the Reorganization ("Substitute Securities"), in the same manner as he is 
entitled to sell to Magellan his shares of the Corporation under this Section 1,
so long as the number of Substitute Securities being sold by Shoffeitt to 
Magellan at any one time represents 50% (in the case of the exercise of 
options under Section 1.1), or 25% (in the case of the exercise of options 
under Section 1.2 or 1.3) of his total holdings of Substitute Securities 
(calculated immediately after such Reorganization).  For example, if 
Shoffeitt were exercising his option under Section 1.1 and immediately prior 
to such exercise, he held a total of 3.45 shares of Substitute Securities, he 
would sell 50% of his 3.45 Substitute Securities to Magellan under Section 
1.1.  Without limiting the generality of the foregoing, Shoffeitt 
specifically acknowledges and agrees that the parties anticipate that the 
Corporation will be merged with and into Allied Specialty Care Services, 
Inc., a Florida corporation, and that in the event such merger is consummated 
as anticipated, his ownership interest in the surviving entity will be 
approximately .63%, but the parties 


                                       2






agree that such reduced percentage to be held by Shoffeitt shall have no 
impact whatsoever on the amount of consideration to be paid (in Magellan 
stock or cash) upon the exercise of Shoffeitt's options under this Section 1 
or upon the exercise of Magellan's options under Section 5. The parties 
hereto agree that all references in this Agreement to shares of the 
Corporation held by Shoffeitt shall be deemed to include Substitute 
Securities resulting from any Reorganization.

     1.6   Notwithstanding any other provision of this Agreement to the 
contrary, Magellan may, in its sole discretion, elect to pay cash to 
Shoffeitt in the amount referenced in Section 1.1, 1.2 or 1.3, as applicable, 
in lieu of the issuance of shares of Magellan's common stock under such 
applicable Section, as consideration for the payment of the Corporation's 
shares being sold to Magellan pursuant to such applicable Section.

2    Trading Day Defined.  A "Trading Day" is defined as a day on which 
Magellan's common stock (i) is not suspended from trading on the New York 
Stock Exchange (or such other exchange as may then be the primary market for 
the trading of Magellan stock) at the close of business; and (ii) has traded 
at least once on such exchange.

3    Registration and Resales.

     3.1   No later than January 15, 1998, Magellan shall file a registration 
statement under the Securities Act of 1933 (the "Securities Act") with 
respect to the issuance and resale of the shares of Magellan's common stock 
upon the exercise of the options set forth in Section 1 hereof, and shall use 
its reasonable efforts to cause such registration statement to become 
effective by March 1, 1998.  Magellan shall use reasonable efforts to 
maintain the effectiveness of such registration statement for a period 
commencing on the initial effective date of such registration statement and 
terminating on the later of (i) December 31, 2001, or (ii) one year following 
the issuance of shares pursuant to the option set forth in Section 1.3 if 
such issuance occurs later than December 31, 2000 due to the delay in the 
exercise of such options pursuant to Section 4.2 hereof.  Shoffeitt agrees to 
provide to Magellan such information regarding himself as Magellan may from 
time to time reasonably request in writing, and as required by the Securities 
Act, and he agrees to immediately notify Magellan of any change in such 
information. Shoffeitt agrees to enter into such agreements as are customary 
in connection with the registration of shares for resale, including without 
limitation, underwriting agreements and powers of attorney in customary form, 
substance and scope, and to take such other actions as Magellan or the 
underwriters, if any, may reasonably request in order to expedite or 
facilitate the resale of the registered shares.

     3.2   During any period in which the registration statement filed 
pursuant to Section 3.1 is effective, Magellan shall have the right, upon 
giving notice to Shoffeitt, to require Shoffeitt not to sell any such shares 
pursuant to such registration statement for a period of time which Magellan 
deems reasonably necessary (which time shall be specified in such notice but 
in no event longer than a period of 90 days), if (i) Magellan is engaged in 
an offering of shares of Magellan's common stock by Magellan for its own 
account or is engaged in or proposes to engage in discussions or negotiations 
with respect to, any merger, acquisition, other form of business 
combination, divestiture, tender offer, financing or other transaction, or 
there is any other event or state of facts


                                       3



relating to Magellan which is material to Magellan (any such transaction, 
event or state of facts referred to herein as a "Material Activity"), and 
(ii) such Material Activity has not been publicly announced and would, in the 
opinion of counsel for Magellan, require disclosure so as to permit the 
registered shares to be sold in compliance with applicable law.

     3.3   Shoffeitt acknowledges and agrees that the offer and sale of all 
shares of Magellan's common stock received upon exercise of the options 
contained herein shall be subject to Magellan's Stock Trading Policy dated 
August 1, 1997, as it may be amended from time to time (the "Stock Trading 
Policy"), to the extent that such Stock Trading Policy is then applicable to 
Shoffeitt, and (ii) by applicable federal and state securities laws.  In 
addition, Shoffeitt hereby agrees that in the event he exercises any such 
options, he shall not sell more than Ten Thousand (10,000) shares of 
Magellan's common stock on any single Trading Day (such figure to be adjusted 
appropriately to account for stock splits, stock dividends, recapitalizations 
or other events affecting the number of issued and outstanding shares).

     3.4   All expenses incident to the registration of the shares of 
Magellan's common stock pursuant to the provisions of this Section 3, 
including without limitation, all registration and filing fees, fees and 
expenses of compliance with securities laws, printing and engraving expenses, 
messenger and delivery expenses and fees and disbursements of counsel for 
Magellan and all independent certified public accountants, underwriters 
(excluding underwriter discounts and any selling commissions) and any persons 
retained by Magellan (all such expenses referred to herein as "Registration 
Expenses"), will be paid by Magellan; provided that all expenses incurred by 
Shoffeitt to retain any counsel, accountant or other advisor (if any), will  
not be deemed Registration Expenses and will be paid by Shoffeitt.  The 
underwriting discounts or commissions and any selling commissions together 
with any stock transfer or similar taxes attributable to sales by Shoffeitt 
of the shares of Magellan's common stock, will be paid by Shoffeitt.

4     Exercise of Put Options

     4.1   If Shoffeitt desires to exercise his put options hereunder, he 
shall give written notice to Magellan during the period in which the option 
may be exercised, and such options may only be exercised as to all of the 
shares of the Corporation's stock which he is entitled to put to Magellan at 
any one time.

     4.2   Upon receipt of notice from Shoffeitt of the exercise of his 
option hereunder, Magellan shall notify Shoffeitt if (i) Shoffeitt is then 
deemed to be a Designated Individual under the Stock Trading Policy, and if 
so, whether there is any circumstance or condition then existing that would 
cause Shoffeitt's ability to sell all of the shares of Magellan's common 
stock which Shoffeitt would receive upon the exercise of such option, during 
a then-current Window Period (as defined in the Stock Trading Policy) or 
during the next scheduled Window Period, to be suspended or cancelled 
altogether, or (ii) the registration statement contemplated by Section 3.1 is 
not then effective.  In the event that Magellan notifies Shoffeitt of such 
anticipated suspension or cancellation of a Window Period, or of the 
non-effective status of such registration statement, then Shoffeitt shall 
have the right to notify Magellan of his election to delay the exercise of 
such option (i) until the then-current Window Period is re-opened (provided 
that any such Window Period remains open for not less than twenty (20) 
consecutive days after


                                       4





Magellan provides written notice to Shoffeitt, and Magellan hereby agrees to 
provide written notice of any such re-opening), or the next scheduled Window 
Period is opened, as applicable (and such option shall not expire until the 
closing of such Window Period), or (ii) in the case of a delay due to a 
non-effective registration statement, until such registration statement is 
effective.

5     Magellan's Call Option.  At any time during the period commencing upon 
the expiration of any of the options set forth in Section 1.1, 1.2 or 1.3, 
and ending at the close of business one year after the commencement of such 
call option hereunder (except in the case of an extension of the exercise 
period as set forth below), Magellan shall have the right to acquire from 
Shoffeitt, and Shoffeitt shall be obligated to sell to Magellan following 
written notice of the exercise of such option, the number of shares of the 
Corporation's stock to which the expired put option relates; provided 
however, that Lincoln shall be afforded the opportunity to purchase, in 
accordance with the terms of the Shareholders Agreement, his pro rata share 
of Shoffeitt's shares to be acquired by Magellan.  In consideration for such 
shares, Magellan shall issue to Shoffeitt a number of shares of Magellan's 
common stock determined by dividing the dollar value specified in Section 
1.1, 1.2 or 1.3, as applicable, by the average closing price per share of 
Magellan's common stock on the ten Trading Days immediately prior to the 
second Trading Day preceding the date on which such stock is to be issued; 
provided however, that the number of shares of Magellan's common stock to be 
issued shall be adjusted appropriately to account for stock splits, stock 
dividends, recapitalizations or other events affecting the number of issued 
and outstanding shares of Magellan's common stock, which occur after the ten 
Trading Days on which such average closing price per share is based.  
Notwithstanding the foregoing, Magellan shall not be entitled to exercise 
any option under this Section 5 unless there is at the time of exercise an 
open Window Period which will remain open for at least 20 consecutive days 
after the exercise of such option.  In the event that there would not be an 
open Window Period for a period of at least 20 consecutive days after the 
exercise of the option, then the period in which Magellan may exercise its 
option hereunder shall be automatically extended until either a Window Period 
is open for at least 20 consecutive days, or until one year after Magellan 
notifies Shoffeitt that he is no longer subject to Magellan's Stock Trading 
Policy.  Notwithstanding any other provision of this Section 5 to the 
contrary, Magellan may, in its sole discretion, elect to pay cash to Shoffeitt 
in the amount referenced in Section 1.1, 1.2 or 1.3, as applicable, in lieu 
of the issuance of the number of shares of Magellan's common stock specified 
under such applicable Section, as consideration for the payment of the 
Corporation's shares being sold to Magellan upon the exercise of Magellan's 
option hereunder.  In addition, notwithstanding anything to the contrary 
contained herein, Magellan may elect, by delivering ten (10) days' prior 
written notice at any time after January 1, 1998, to acquire all of the 
shares of the Corporation held by Shoffeitt for a total cash purchase price 
of One Million Dollars ($1,000,000) plus such additional amount, if any, 
necessary to offset, on an after-tax basis, any adverse tax consequences 
which may be suffered by Shoffeitt as a result of the exercise of such option 
prior to the time when Shoffeitt would have been entitled to exercise his 
options under Section 1, with such cash purchase price payable at the Closing 
for the purchase of such shares.  In the event that Magellan exercises such 
option, Lincoln shall be afforded the opportunity to purchase, in accordance 
with the terms of the Shareholders Agreement, his pro rata share of 
Shoffeitt's shares to be acquired by Magellan.

6     Closing.  In the event that Shoffeitt exercises his rights under 
Section 1, or Magellan exercises its rights under Section 5 as to shares of 
the Corporation's stock held by Shoffeitt, Magellan shall schedule a Closing 
for the purchase and sale of such shares of the Corporation's stock to be 
held as soon as practicable considering that Shoffeitt may desire to 
immediately sell the shares of Magellan stock to 

                                       5





be received at the Closing, and in no event more than 30 days after the 
delivery of such exercise notice, or at Shoffeitt's election made by 
delivering written notice of such election to Magellan, on a day which is 
within the first ten (10) days of the next open Window Period.  At any 
closing held to transfer shares of the Corporation's stock pursuant to the 
provisions of Section 1 or 5 of this Agreement (a "Closing");

     6.1   The location shall be at the offices of the Corporation unless 
otherwise agreed to by all of the parties to the Closing.

     6.2   Shoffeitt shall deliver to Magellan (or its assignee) the 
certificates representing the shares of the Corporation's stock to be sold, 
duly endorsed in blank or accompanied by stock powers endorsed in blank.

     6.3   Magellan shall deliver to Shoffeitt at the Closing, stock 
certificates representing the number of shares of Magellan's common stock 
required to be issued under Section 1.1, 1.2 or 1.3, as applicable, in payment
for such stock of the Corporation being sold.

     6.4   Except as otherwise provided herein, each party shall pay its own 
expenses incidental to any transaction provided for in this Agreement.

7     No Transfer Prior to Expiration of Option.  Shoffeitt hereby agrees 
that during the period commencing on the date hereof and continuing until one 
year after the expiration of all of the options granted to Shoffeitt 
hereunder, Shoffeitt shall not sell, transfer, assign, pledge, encumber or 
otherwise dispose of any of the shares of the Corporation held by Shoffeitt, 
other than a transfer to Magellan in a Closing pursuant to Section 6 above 
(and to Lincoln to the extent he elects to exercise his right of first 
refusal under Section 4 of the Shareholders Agreement), and any sale, 
transfer, assignment, pledge, encumbrance or other disposition prior to such 
date shall be void and of no effect.  Notwithstanding anything to the 
contrary contained herein, Shoffeitt shall have no obligation under this 
Section 7 in the event that Magellan breaches any material obligation to 
Shoffeitt hereunder if such breach is not cured within 30 days of receipt of 
written notice of such breach from Shoffeitt.

8    Waiver of Duties

     8.1   Shoffeitt hereby agrees that neither Magellan nor the Corporation, 
nor the officers or directors of Magellan or the Corporation, shall have any 
fiduciary duty, quasi-fiduciary duty or any other express or implied duty, at 
law or in equity (in their capacity as officers, directors, majority 
shareholder or otherwise), to the Corporation or Shoffeitt as shareholders, 
officers, directors, or employees of the Corporation.  Accordingly, Magellan 
and its affiliates shall be free to engage in any business or activity which 
Magellan may desire, in its sole discretion, without regard to whether such 
business or activity is competitive with the business of the Corporation, and 
without providing any opportunity to Shoffeitt or the Corporation to 
participate in any such activity or business, and without any compensation to 
Shoffeitt or the Corporation.  Shoffeitt further acknowledges that subject to 
agreement by Lincoln, Magellan shall be free to cause the Corporation to 
transfer or license the right to use any and all of the assets of the 
Corporation to any other subsidiary of Magellan for no consideration or for 
nominal consideration, as Magellan deems in the best interest of Magellan, in 
its sole discretion.  Notwithstanding the foregoing, Magellan hereby

                                       6




agrees that it shall not cause or permit the Corporation to be dissolved 
prior to the expiration of the options granted herein or to take any action 
which adversely affects any of Shoffeitt's rights under this Agreement, it 
being understood and agreed that notwithstanding any sale, dissolution, 
cessation of business, or Reorganization, all of Shoffeitt's rights 
hereunder, including the put options set forth in Section 1, are absolute, 
nonvoidable and vested immediately upon the execution and delivery hereof by 
each of the parties.  Following the expiration or termination of the options 
granted herein, Magellan shall be free to cause the dissolution of the 
Corporation in accordance with the Florida Business Corporation Act, and 
Shoffeitt acknowedges that he is unlikely to receive any distributions in 
connection with any such dissolution after appropriate reserves are 
established for the Corporation's known and contingent liabilites. The 
parties further agree that the rights of Shoffeitt under this Agreement shall 
not be increased, diminished or otherwise affected by any transaction entered 
into by the Corporation, by any increase or decrease in the net worth of the 
Corporation, or by the insolvency or bankruptcy of the Corporation.

     8.2   In consideration of the rights granted to Shoffeitt herein, 
Shoffeitt hereby releases and forever discharges Magellan and the Corporation 
from any and all obligations and liabilities under the Shareholders 
Agreement, including without limitation, all obligations and liabilities 
arising under the provisions of Sections 2, 3, 4, 5, 6, 7, 11.1 and 12 of the 
Shareholders Agreement.  In addition, Shoffeitt hereby agrees that in the 
event that Magellan desires to purchase all or any of the shares of the 
Corporation from Lincoln, Shoffeitt shall have no right to exercise any right 
of first refusal with respect thereto, notwithstanding the provisions of 
Section 4 of the Shareholders Agreement. However, Shoffeitt and Magellan 
acknowledge and agree that Lincoln continues to have a right of first refusal 
with respect to the sale of Shoffeitt's shares of the Corporation, and in the 
event that Shoffeitt desires to exercise his option under Section 1.1., 1.2 
or 1.3 hereof.  Shoffeitt shall give written notice of such intent to Lincoln 
at the same time as Shoffeitt gives notice to Magellan of his intent to 
exercise such option, and each of Shoffeitt and Magellan acknowledge and 
agree that in the event that Lincoln desires to exercise his right of first 
refusal under Section 4 of the Shareholders Agreement with respect to 
Lincoln's pro rata share of the shares of the Corporation to be sold by 
Shoffeitt, then each of Magellan and Shoffeitt shall comply with the 
provisions of Section 4 of the Shareholders Agreement with respect thereto, 
and in such event, both the number of shares of the Corporation's stock to be 
sold to Magellan hereunder, and the number of shares of Magellan's common 
stock to be issued to Shoffeitt by Magellan, shall each be reduced 
accordingly.  Shoffeitt further agrees that in the event that Magellan 
presents Shoffeitt with an amendment to the Shareholders Agreement which 
incorporates the provisions of this Agreement and imposes no additional 
duties, obligations, costs or expenses on Shoffeitt, does not adversely 
affect any of his rights under this Agreement, and which includes Lincoln as 
a party, Shoffeitt shall execute such agreement and deliver same to Magellan 
within 10 days of presentment of such amendment.

9     Representations and Warranties of Magellan.  Magellan represents and 
warrants to Shoffeitt, as of the date hereof, as follows:

     9.1   Magellan is a corporation duly organized, validly existing, and in 
good standing under the laws of Delaware.

                                       7





     9.2   Magellan has the full corporate power and authority to execute and 
deliver this Agreement, to perform hereunder, and to consummate the 
transactions contemplated hereby without the necessity of any act, approval 
or consent of any other person, entity or governmental authority.  This 
Agreement, and each and every other agreement, document and instrument to be 
executed and delivered by Magellan in connection herewith, constitute or 
will, when executed and delivered, constitute the valid and binding 
obligation of Magellan, enforceable against it in accordance with their 
respective terms.

     9.3   The execution and delivery by Magellan of this Agreement and the 
consummation of the transactions contemplated hereby do not and will not (i) 
violate any provision of the charter or bylaws of Magellan, (ii) violate, 
conflict with or result in a breach of any agreement, instrument or 
understanding to which Magellan or the Corporation is a party or to which any 
of its assets are subject or (iii) violate any order, decree, judgment, 
statute, regulation, ordinance or other law or requirement to which Magellan 
or any of its parents, subsidiaries or affiliates are subject.

     9.4   No consent, approval, authorization, order, filing or registration 
by or with any person not a party to this Agreement or any governmental or 
quasi-governmental or regulatory agency is required to be obtained by 
Magellan or the Corporation with regard to the execution of this Agreement or 
of any other agreement or instrument contemplated herein or of the 
consummation of the transactions contemplated hereby or thereby.

10   Representations and Warranties of Shoffeitt.  Shoffeitt represents and 
warrants to Magellan, as of the date hereof, as follows:

     10.1   Shoffeitt has the full capacity to execute and deliver this 
Agreement, to perform hereunder, and to consummate the transactions 
contemplated hereby without the necessity of any act, approval or consent of 
any other person or entity whomsoever.  This Agreement, and each and every 
other agreement, document and instrument to be executed and delivered by 
Shoffeitt in connection herewith constitute or will, when executed and 
delivered, constitute the valid and binding obligation of Shoffeitt, 
enforceable against him in accordance with their respective terms.

     10.2   The execution and delivery by Shoffeitt of this Agreement and the 
consummation of the transactions contemplated hereby do not and will not (i) 
violate, conflict with or result in a breach of any agreement, instrument or 
understanding to which Shoffeitt is a party, or (ii) violate any order, 
decree, judgment, statute, regulation, ordinance or other law or requirement 
to which Shoffeitt is subject.

     10.3   Shoffeitt has been represented by legal counsel in the 
negotiation of this Agreement, and has reviewed this Agreement with counsel 
and fully understands each of the provisions contained herein.

11     Notices.  All notices, demands, requests, consents and approvals which 
may be or are required to be given or made pursuant to any provisions of this 
Agreement shall be given or made in writing and shall be served personally, 
by overnight courier or mailed by prepaid certified or 

                                       8



registered mail, return receipt requested, to the address of each of the 
parties hereto as set forth below:

          If to Shoffeitt:

                     Mr. Paul G. Shoffeitt
                     2640 Jennings Chapel Road
                     Woodbine, Maryland 21797

          With a copy to:

                     Alan M. Schwartz, Esq.
                     9861 Broken Land Parkway
                     Suite 340
                     Columbia, Maryland 21046

          If to Magellan:

                     Magellan Health Services, Inc.
                     3414 Peachtree Road, N.E., Suite 1400
                     Atlanta, Georgia 30326
                     Attn:  Cherie Fuzzell

          with a copy to:

                     J. Eric Dahlgren, Esq.
                     One Ravinia Drive
                     Suite 1600
                     Atlanta, Georgia 30346

or such other address as any of the parties may from time to time advise the 
other parties hereto by notice in writing.  The date of receipt of any such 
notice, demand or request shall be deemed to be the date of giving of such 
notice, demand or request if delivered personally, or if mailed or couriered 
as aforesaid, the date such notice was delivered to the recipient.

12     Non-Exclusive Remedy. The enforcement by any party hereto of its 
rights and remedies pursuant to this Agreement shall not be construed as an 
election of remedies or a waiver of any other rights or available remedies 
which it may possess in law or equity absent this Agreement. The failure of 
any party hereto to enforce the terms of this Agreement on one or more 
occasions shall not act to waive any of such party's rights with respect to 
any subsequent breach of this Agreement by any other party.

13     Equitable Relief. Each of the parties hereto hereby acknowledges and 
agrees that a breach by such party of any of the provisions contained in this 
Agreement will cause the other party irreparable


                                       9


injury and damage.  By reason thereof, each party hereby agrees that the 
other party shall be entitled, in addition to any other remedies it may have 
under this Agreement or otherwise and without the posting of any bond, to 
preliminary and permanent injunctive and other equitable relief to prevent or 
curtail any breach of this Agreement; provided, however, that no 
specification in this Agreement of a specific legal or equitable remedy shall 
be construed as a waiver or prohibition against the pursuing of other legal 
or equitable remedies in the event of such a breach.

14     Severability; Independence of Covenants. In the event that any one or 
more of the provisions of this Agreement or any word, phrase, clause, 
sentence or other portion thereof shall be deemed to be illegal or 
unenforceable for any reason, such provision or portion thereof shall be 
modified or deleted in such a manner so as to make this Agreement, as 
modified, legal and enforceable to the fullest extent permitted under 
applicable laws without destroying the purpose and intent of this Agreement.  
Each of the parties hereto does hereby expressly authorize any court of 
competent jurisdiction to enforce any such provision or portion thereof or to 
modify any such provision or portion thereof in order that any such provision 
or portion thereof shall be enforced by such court to the fullest extent 
permitted by applicable laws.

15     Counterparts. This Agreement may be executed in multiple counterpart 
copies, each of which will be considered an original and all of which 
constitute one and the same instrument, binding on all parties hereto, even 
though all the parties are not signatory to the same counterpart.

16     Assignment. Shoffeitt acknowledges and agrees that he may not assign, 
pledge or otherwise dispose of any of his rights under this Agreement without 
the prior written consent of Magellan, which may be granted or denied in its 
sole discretion; provided however, that in the event of the death of 
Shoffeitt, this Agreement shall be binding upon, inure to the benefit of, and 
be enforceable by the respective administrators, legal representatives, 
personal representatives and heirs of Shoffeitt.  Magellan acknowledges and 
agrees that it may not assign, delegate or otherwise dispose of any of its 
duties or obligations under this Agreement.

17     Amendments. This Agreement may not be amended except in a writing duly 
executed by each of the parties hereto.

18     Construction. The parties acknowledge and agree that this Agreement is 
the result of extensive negotiations between the parties and their respective 
counsel, and that this Agreement shall not be construed against either party 
by virtue of its role or its counsel's role in the drafting hereto.

19     Governing Law. This Agreement shall be governed by and construed in 
accordance with the substantive laws of the State of Georgia which apply to a 
contract executed and to be performed entirely within the State of Georgia, 
without regard to principles of conflicts of laws.

20     Headings. The headings in this Agreement are provided for convenience 
of reference only and are not to be deemed a part of this Agreement.

21     Conflicts With By-Laws. In the event of a conflict between the 
provisions of this Agreement and the By-laws of the Corporation, the 
provisions of this Agreement shall govern the conflicting By-law provision.

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22      Attorneys' Fees. In the event of any dispute or litigation between 
Magellan (and/or any of its affiliates) and Shoffeitt arising from or in 
connection with this Agreement or with respect to the subject matter of the 
Mutual Release, the prevailing party shall be entitled to recover from the 
other party all reasonable costs and expenses incurred in connection 
therewith, including without limitation, reasonable attorneys' fees.

23     Entire Agreement. This Agreement, together with the Mutual Release 
entered into as of the date hereof by and between Magellan, the Corporation 
and Shoffeitt, constitutes the entire agreement among the parties hereto and 
supersedes and cancels any prior agreements, representations, warranties, or 
communications, whether oral, written or collateral, among the parties hereto 
relating to the transactions contemplated hereby or the subject matter 
herein.  The parties hereto acknowledge that notwithstanding anything to the 
contrary contained herein, this Agreement shall not operate or be construed 
in any manner to affect or modify any of Lincoln's rights under the 
Shareholders Agreement.

                    [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed as of the day and year first written above.


                                          SHOFFEITT:
Witness:


[illegible]                               /s/ Paul G. Shoffeitt
- ------------------------------            -------------------------------------
                                          Paul G. Shoffeitt



                                          MAGELLAN:
                                          Magellan Health Services, Inc.



Attest:                                   By: Craig L. McKnight          (SEAL)
                                          -------------------------------------
                                          Name:  Craig McKnight                
                                                 ------------------------------
                                          Title: Executive Vice President,
[illegible]                                      Finance & Accounting (CFO)
- ------------------------------                   ------------------------------


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