Bill Parcells is one the great coaches in the NFL history and one of the great producers of leaders in NFL history. Look at how many of Bill Parcells assistants went on to win a Super Bowl: Bill Belichick, Tom Coughlin, Sean Payton. Parcells formula was simple- Play Great Defense, Control the Clock on Offense & Win the Kicking Game. Parcells preached physical football at all times. Listen to Bill Parcells.