Biography

Mr. Crenshaw became our executive vice president and chief operating officer following the consummation of the 2011 acquisition by The Carlyle Group. From January 1, 2010 until the acquisition, Mr. Crenshaw was our executive vice president and chief supply officer. Prior to this role, Mr. Crenshaw was named executive vice president and general manager of our Enterprise division in February 2004. From 2000 to 2004, he served as executive vice president of Procurement and general manager of Network Products Group of our company. Prior to that time, he held various positions with our company since 1985.