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                FIFTH AMENDMENT TO EXECUTIVE EMPLOYMENT AGREEMENT


     THIS FIFTH AMENDMENT TO EXECUTIVE  EMPLOYMENT AGREEMENT is made and entered
into as of March 31,  1999,  and  effective  as of January  1, 1999 (the 'Fifth
Amendment'),  by  and  between  MODIS  PROFESSIONAL  SERVICES,  INC.,  (formerly
AccuStaff  Incorporated)  a Florida  corporation  (the  'Employer') and DEREK E.
DEWAN, a resident of the State of Florida (the 'Executive').

     WHEREAS,  the  Employer  and  the  Executive  entered  into  an  Employment
Agreement dated December 31, 1993, as amended by the First Amendment dated as of
December  31, 1993 (the'First  Amendment'),  the Second  Amendment  dated as of
August 24, 1995,  and effective as of January 26, 1995 (the 'Second  Amendment')
the Third Amendment dated as of August 24, 1995 (the 'Third Amendment'), and the
Fourth  Amendment  dated  as of  March,  1996  (the 'Fourth  Amendment),  (such
Employment  Agreement,  as  amended  by the  First,  Second,  Third  and  Fourth
Amendments, is herein collectively referred to as the'Agreement');

     WHEREAS,  in recognition of the  Executive's  outstanding  performance  and
record of  achievement  to date as President and Chief  Executive  Officer,  the
Employer wishes to increase Executive's salary.

     WHEREAS,  Employer wishes to clarify that Executive's incentive bonus shall
be calculated  based upon a year to year increase in net income from 'operating
earnings'.

     NOW,  THEREFORE,  in consideration  of the mutual promises,  agreements and
covenants,  and  subject  to the terms and  conditions  contained  in this Fifth
Amendment, the Employer and the Executive, intending to be legally bound, hereby
agree as follows (unless otherwise indicated, all capitalized terms herein shall
have the same meaning ascribed to them in the Agreement).

     1.  RECITALS  CORRECT.  The above  recitals are true and correct and are by
this reference incorporated in and made a part of this Fifth Amendment.

     2. BASE  SALARY.  Paragraph  4.A.  of the  Agreement  is hereby  amended by
deleting the amount  '$350,000' from the first line thereof and substituting the
amount '$500,000.'

     3. The first  sentence of Paragraph 4.B. of the Agreement is hereby amended
to read as follows: Additional Compensation (the'Incentive  Compensation') equal
to four percent (4%) of growth  (increase)  in net income  exclusive of one-time
gains  (before state and federal  income and franchise  taxes) of Employer (on a
consolidated  basis) for each fiscal year ( or part thereof) of Employer  during
the Employment Period.

     4. AGREEMENT VALID.  Except as modified hereby,  the Agreement shall remain
valid and binding upon the Employer and the Executive.


     IN WITNESS  WHEREOF,  the parties have executed this  Agreement as of March
31, 1999, effective as of January 1, 1999.

                        MODIS PROFESSIONAL SERVICES, INC.



                      By:__________________________________
                                 T. Wayne Davis
                        Chairman, Compensation Committee