I'm not sure having play calling taken away by a veteran HC is a good indicator of future success. Sean Payton was stripped of his play calling by a veteran HC.
Not just him but this scenario has occured more times then just Payton, where they were stripped of play calling and went on to be a successful head coach. I’m drawing a blank but I’m sure it’s not hard to look up. Wasn’t Shananhan one of em? Wasn’t he stripped of play calling in Atlanta?
I’m not sure I Like naming him here. The real truth is Shanahan’s style of offense wasn’t working well consistently and the NFL changed and his style of offense became prime with minor changes.