Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Robert Alan McCaffrey (born April 16, 1952 in Bakersfield, California) is a retired National Football League center who had a notable career while a student athlete on the University of Southern California Trojans football team. Lewis was drafted by the Green Bay Packers in the 1975 NFL Draft and played one season before retiring. Bob played college football at the University of Southern California where he lettered for three seasons, 1972-74.