He is tied for the most Super Bowl appearances by a head coach in NFL history , too .
Shula is also the only head coach in league history to guide his team to a perfect record ( 1972 Dolphins ) .
Shula is tied for the most Super Bowl appearances by a head coach in NFL history , too .
Shula is also the only head coach in league history to guide his team to a perfect record ( 1972 Dolphins ) .