Dr. Sullivan has served as a member of our Board of Directors since the completion of our initial public offering. Since 2003, Dr. Sullivan has been dean of the Rady School of Management at University of California, San Diego.  From 1997 until 2002, he was dean of Kenan-Flagler Business School at University of North Carolina, Chapel Hill.  From 1976 until 1998, Dr. Sullivan served in a variety of senior positions at the University of Texas and Carnegie Mellon University.  Since 2004, Dr. Sullivan has served on the board of directors of Cubic Corporation, and is currently its lead independent director.  From 1991 until 2006, Dr. Sullivan served as a director of Stewart and Stevenson Services, Inc.  Dr. Sullivan received his Doctor of Philosophy degree from Pennsylvania State University.  He received his Master of Business Administration degree from Cornell University and his Bachelor of Arts degree in mathematics from Boston College.  Dr. Sullivan is the chairperson of our Board's Compensation Committee and a member of our Board's Nominating and Corporate Governance Committee.