Mr. Babbio has served as a Senior Advisor to Warburg Pincus, a private equity firm, since June 2007. Previously, Mr. Babbio served as Vice Chairman and President of Verizon Communications, Inc. (formerly Bell Atlantic Corporation), a telecommunications company, from 2000 until his retirement in April 2007. He was a director of Compaq Computer Corporation from 1995 until HP's acquisition of Compaq in May 2002.