I think taking a hard and thoughtful look at Bill's career and legacy is a fair topic. He is a lot closer to the end of his career as coach than the beginning so it was going to come up eventually.
I think every intelligent football fan would say Bill is at least an all time great coach. But if it wasn't for rings, what benchmark are we using to say Bill is the GOAT? I'd like to think he is. It's easy to say Bill is GOAT because of his wins and rings but if you don't use that, how do you objectively compare Bill with someone like Landry or Shula or Noll or Lombardi? That's a tough question. We talk about this for QB's a lot - I think we can do the same for coaches. Are we saying Bill is GOAT only because of rings? As is the case with QBs, rings are a team stat first. How many rings would BB have with an average QB instead of Brady? Is Marv Levy a worse coach than Barry Switzer because Levy hasn't won a ring?
Totally agree Bill innovated and changed the game. I think Walsh did too. So did Landry. Heck so did Dungy and he's not an all time great coach.
Can Bill win with any QB? So far what we're seeing with Bill isn't in his favor. Gibbs could. Noll could not though. Neither could Walsh. Shanahan was nothing special without Elway.
The GOAT coach ought to elevate his players to greatness and being HOF worthy. Brady is a no brainer but how does Bill compare here with other coaching greats? I don't know.
What about Bill elevating his coaching peers? It's been a mixed bag so far. Flores looks like he's a good coach. McDaniels wasn't. Weis was a failure. Crennel was all right. Compare that to Andy Reid who has had a lot of success happen in his coaching tree. On the other hand, you could say Parcells hasn't won a thing without Bill as his DC.