People are saying TB12. But how much of it was him?
Well, assuming a full, healthy season, Brady is 1/32 of all QB time. Him retiring at 43(?) and getting replaced by a 23(~) year old is 20 years, or an average age drop in QB’s by 20/32 years, or .625 years.
That’s a little over half a gridline… so he was by no means the only influence, or even the majority of the influence in the stat, but he was damn sure a HUGE one.
MLB coach Charlie Manuel is always the example I think of.
Talented, superstar players aren’t dumb, but ultimately they need what works for them, and they master it… less talented players need to grind, to find any and every advantage they can get. (They also need people skills, cause locker room presence is more important in those mid/replaceable players)
So when it comes to teaching various body types or mindsets. One of those coaches is MUCH more prepared to teach what they themselves aren’t.
That’s my head canon at least.