Barry Layne Switzer (born October 5, 1937) is a former American football coach and player. He served for 16 years as head football coach at the University of Oklahoma and 4 years as head coach of the Dallas Cowboys of the National Football League (NFL). He won three national championships at Oklahoma, and led the Cowboys to win Super Bowl XXX against the Pittsburgh Steelers. He has one of the highest winning percentages of any college football coach in history, and is one of only three head coaches to win both a college football national championship and a Super Bowl, the others being Jimmy Johnson and Pete Carroll.