David F. Walker

Director, Chairman of the Audit Committee

David F. Walker has served as a director of our company since February 2006 and is chairman of our Audit Committee. Mr. Walker is the Director of the Accountancy Program and the Program for Social Responsibility and Corporate Reporting at the University of South Florida St. Petersburg, where he has been employed since 2002. Prior to joining the University of South Florida, Mr. Walker was with Arthur Andersen LLP, having served as a partner in that firm from 1986 through 2002. Mr. Walker earned a master’s of business administration from the University of Chicago Graduate School of Business with concentration in accounting, finance and marketing, and a bachelor of arts degree from DePauw University with majors in economics and mathematics and a minor in business administration. Mr. Walker is a certified public accountant and a certified fraud examiner. Mr. Walker also serves on the board of directors of Chico’s FAS, Inc., First Advantage Corporation and Technology Research Corporation, participating on the executive, audit and corporate governance committees of Chico’s and chairing its audit committee; chairing the audit committee of First Advantage; and participating on the compensation and nominating committees of Technology Research.

Independent Director