Amendment Number One Dated as
                                             of November 7, 1997 to Stock
                                             Purchase and Sale Agreement Dated
                                             as of October 6, 1997 among
                                             Alternative Resources Corporation,
                                             Compagnie Generale d'Informatique,
                                             Joseph R. Ferrandino, Thomas K.
                                             Sheridan and International Business
                                             Machines Corporation

     WHEREAS, Alternative Resources Corporation, Compagnie Generale 
d'Informatique, Joseph R. Ferrandino, Thomas K. Sheridan and International 
Business Machines Corporation (the "Parties") have entered into a Stock 
Purchase and Sale Agreement Dated as of October 6, 1997 (the "Stock Purchase 
Agreement"); and

     WHEREAS, the Parties wish to amend the Stock Purchase Agreement to 
provide for an additional escrow agreement among certain of the Parties, to 
amend the payment provisions thereof and to amend Exhibit G thereto;

     NOW THEREFORE, in consideration of the foregoing premises and other good 
and valuable consideration, the receipt and sufficiency of which each of the 
Parties hereby acknowledges, the Parties hereby agree to amend the Stock 
Purchase Agreement as follows:

          "SECTION 1.01. CERTAIN DEFINITIONS." is amended to add the 
following, new definition:

               "I/T STAFFING REVENUES ESCROW AGREEMENT" shall mean the I/T 
Staffing Revenues Escrow Agreement to be dated as of the Closing Date among 
CGI, Ferrandino, Sheridan and Buyer and the Escrow Agent, in the form annexed 
hereto as Exhibit H.

          "SECTION 2.01. PURCHASE AND SALE OF SHARES." shall be amended by 
amending subsection (b) thereof as follows:

               "(b) Sheridan shall sell to the BUYER and BUYER shall purchase 
from Sheridan sixteen thousand twenty (16,020) shares of the Company for one 
million six hundred forty four thousand three hundred ninety two dollars and 
forty four cents $(1,644,392.44), less (i) forty thousand dollars 
($40,000.00), which constitutes the remaining principal balance remaining due 
as of the Closing Date from Sheridan to the Company, and (ii) seventy three 
thousand five hundred dollars ($73,500.00) which constitutes the remaining 
principal balance remaining due as of the Closing Date from Sheridan to CGI 
Corp.;"

          "SECTION 2.02. PAYMENT OF THE PURCHASE PRICE." is amended as 
follows:



               Subsection (a) is amended to read as follows: "(a)(i) to CGI 
the amount of fifty three million one hundred seventy three thousand four 
hundred sixty one dollars ($53,173,461.00) by wire transfer of immediately 
available funds to the account designated by CGI at least two Business Days 
prior to the Closing Date, and (ii) seventeen million seven hundred twenty 
four thousand four hundred eighty eight dollars ($17,724,488.00) to the 
Escrow Agent to be held by the Escrow Agent for the account of CGI pursuant 
to the terms and conditions of the I/T Staffing Revenues Escrow Agreement;"

               Subsection (c) is amended to read as follows: "(c) one-quarter 
(1/4) of the respective amounts set forth in Section 2.01(a) and 2.01(b) to 
the Escrow Agent to be held by the Escrow Agent pursuant to the terms and 
conditions of the Escrow Agreement; and"

               A new Subsection (d) is added as follows; "(d) one-quarter 
(1/4) of the respective amounts set forth in Section 2.01(a) and 2.01(b) to 
the Escrow Agent to be held by the Escrow Agent for the account of Ferrandino 
and Sheridan, respectively, pursuant to the terms and conditions of the I/T 
Staffing Revenues Escrow Agreement."

          "SECTION 4.17 NTS LICENSES." shall be amended as follows:

               "Except as specified in Exhibit G hereto, the Company has not 
received any notice or other communication, whether written or, to the 
knowledge of the Company, oral, to the effect that the number of NTS licenses 
will be increased or that the nature and scope or the value of the NTS 
license to the Company will be materially impaired."

          EXHIBIT G shall be amended by adding to it a copy of the October 
30, 1997 letter from Mr. Patrick J. O'Neil to Mr. Richard B. Williams (copy 
attached).

          EXHIBIT H (a new exhibit) comprised of the "I/T Staffing Revenues 
Escrow Agreement" (copy attached) shall be added to the Stock Purchase 
Agreement.

     Except as otherwise expressly modified hereby, the Parties hereby agree 
that all terms and conditions of the Stock Purchase Agreement remain 
unmodified and in full force and effect.

IN WITNESS WHEREOF, this Agreement has been executed as of the day and year 
first above written.

                                       Alternative Resources Corporation

                                       By:
                                          ------------------------------
                                          Name:
                                          Title:



       [Signature Page to Amendment No. 1 dated as of November 7, 1997
    to Stock Purchase and Sale Agreement Dated as of October 6, 1997 among
     Alternative Resources Corporation, Compagnie Generale d'Informatique,
                 Joseph R. Ferrandino, Thomas K. Sheridan and
                 International Business Machines Corporation]


                                       INTERNATIONAL BUSINESS MACHINES
                                       CORPORATION

                                       By:
                                          -----------------------------
                                          Name:
                                          Title:

                                       Compagnie Generale d'Informatique

                                       By:
                                          -----------------------------
                                          Name:
                                          Title:


                                       Joseph R. Ferrandino

                                       By:
                                          -----------------------------
                                          Name:
                                          Title:

                                       Thomas K. Sheridan

                                       By:
                                          -----------------------------
                                          Name:
                                          Title: