<TABLE> <S> <C>

<PAGE>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
REGISTRANT'S CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   9-MOS
<FISCAL-YEAR-END>                          DEC-27-1996             SEP-05-1997
<PERIOD-START>                             DEC-30-1995             DEC-28-1996
<PERIOD-END>                               DEC-27-1996             SEP-05-1997
<CASH>                                          33,761                   7,969
<SECURITIES>                                     8,460                   8,000
<RECEIVABLES>                                  137,055                 151,158
<ALLOWANCES>                                     2,572                   2,889
<INVENTORY>                                      3,799                   3,080
<CURRENT-ASSETS>                               199,190                 182,165
<PP&E>                                          41,795                  46,081
<DEPRECIATION>                                  26,818                  31,001
<TOTAL-ASSETS>                                 315,281                 316,620
<CURRENT-LIABILITIES>                           94,731                 102,448
<BONDS>                                         37,313                  25,997
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        74,895                  75,224
<OTHER-SE>                                      55,486                  61,098
<TOTAL-LIABILITY-AND-EQUITY>                   315,281                 316,620
<SALES>                                        906,247                 684,993
<TOTAL-REVENUES>                               906,247                 684,993
<CGS>                                          791,877                 601,525
<TOTAL-COSTS>                                  791,877                 601,525
<OTHER-EXPENSES>                                86,994                  64,502
<LOSS-PROVISION>                                 1,635                     540
<INTEREST-EXPENSE>                               2,253                   2,312
<INCOME-PRETAX>                                 23,488                  16,114
<INCOME-TAX>                                    11,038                   8,040
<INCOME-CONTINUING>                             12,450                   8,074
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    12,450                   8,074
<EPS-PRIMARY>                                      .97                     .62<F1>
<EPS-DILUTED>                                      .97                     .62
<FN>
<F1>EARNINGS PER SHARE OF THE REGISTRANT HAVE BEEN RESTATED TO REFLECT A
THREE-FOR-TWO STOCK SPLIT ON AUGUST 27, 1997.
</FN>
        

</TABLE>