Patsalos-Fox, 65, was elected to the Cognizant board in July 2012 and serves on the finance, management development and compensation, and nominating, governance and public affairs committees.
Until October 2013, he was a senior partner at global management consulting firm McKinsey & Company, where he worked for 32 years. During his tenure at McKinsey, he served on its board of directors for 12 years and was chairman for the Americas for 6 years.
Klein, 77, was elected to Cognizant's board in March 1998 and has served as chairman since December 2003. Since that time, Cognizant has grown from a small technology and integration firm into a world-class provider of business and digital consulting, services and solutions that are helping transform the world's leading businesses. Under Klein's leadership on the board, Cognizant's valuation has increased approximately 500-fold from its 1998 IPO.