Look at Goff. He was shit playing for Fisher with no OL and no weapons. He's mostly very good playing for McVay with a good OL and weapons. It's the same player, no difference in talent, no difference in ability. But good coaching, a good supporting cast, and an easy schedule can take a 63.6 passer and make him a 101.1 passer.

The problem is when your good coach goes up against the GOAT coach and gets completely out-schemed you're going to lose a lot of that luster. That would be true for like 25 other QBs in the NFL. They go the way of the coach and supporting cast.

McVay is a good coach, but like so many other coaches he was too hesitant to go away from his plan and that's why they lost. That's one of the reasons Belichick--despite being a cheating scumbag--is the GOAT: no coach in the league is more willing to break tendencies and use radically different strategies on a game by game or even drive by drive basis.