The Hackett Group, Inc. (HCKT) 10-Q 2002 Q2 Quarterly report

Exhibit 99.1

ANSWERTHINK, INC

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Answerthink, Inc. (the “Company”) on Form 10-Q for the period ending June 28, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ted A. Fernandez, Chairman of the Board and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 that:

(1) The Report fully complies with the requirements of section 13 (a) or 15 (d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/    TED A. FERNANDEZ      

Ted A. Fernandez

Chairman of the Board and Chief Executive Officer

August 12, 2002