Football coaches rarely deviate from their own established strategies. It’s often why formerly successful coaches struggle to win years later. For example, Monte Kiffin and Rod Marinelli were once the most brilliant defensive masterminds in the NFL. Their Tampa 2 defense had almost single-handedly won the Buccaneers a Super Bowl. But when the Cowboys brought in the duo nearly a full decade later, it quickly became apparent that the game had passed them by. Ultimately, a lack of evolution and adaptation is what sealed the fates of Kiffin and Marinelli in Dallas.
It’s also a part of what sealed Mike McCarthy’s fate in Green Bay.