Mel Renfro was a football and track star at the University of Oregon, Mel Renfro was a college Running Back, but Tom Landry and the Dallas Cowboys had other ideas for his speed.
Randy White was a superstar at the University of Maryland, where in 1974 he won the Lombardi Trophy and was the ACC Player of the Year. The Cowboys took notice, and they would select him with the second overall pick.
While a case could have been made for Roger Staubach to be at #1, #3 for this team still means you are a Hall of Fame caliber player.