In the 1960s, the Green Bay Packers ruled the NFL with 5 NFL Championships (three in a row - 1965, 1966 and 1967). Their coach was Vince Lombardi, the venerable one, who led the Green Bay dynasty and was voted by ESPN in 2000 as the Coach of the Century. Their championship record still stands: No NFL team since Lombardi's Packers has ever won three in a row.
It was Lombardi's tremendous leadership to motivate and inspire players to play their best that transformed NFL coaching. Observably, Lombardi was the conduit and responsible for turning the losing Packers into a championship team in just three years.