I routinely read this forum and have for more than a decade. I have been a big Pats fan for fifty years and follow the team closely. This forum and how people argue, in my opinion, reflects the dialogue across the country; people fitting the facts into their own narrative.
I think BB is the best coach in team sports history. I think football is more challenging to coach than any other professional sport. There are more players, really three separate "teams" on each team, and more stoppage of play, so that the opportunity for coaches to intervene is more pronounced. Given this, I think BB, as the greatest pro football couch of all time, is the greatest team sport coach of all time. However, if you watched the Pats for the last 3-4 years of his tenure and you felt that they looked like a well-coached team, then you were watching a different outfit than I was watching.
The Pats were a dominant team on special teams for twenty years. In BBs last four years they were awful. Missed field goals, penalties, returns for touchdowns. Did Mac play special teams? The Pats defense, despite being above average, routinely made mental errors whereas top defenses rarely do. Jumping offside of fourth and one, too many men of the field, etc.. These were the kinds of mistakes that other teams made for twenty years and we used to chuckle about. Now it was us making the mistakes. And despite being statistically in the top half of the league, they clearly had difficulty stopping good offences when they needed to. And the offence. Not just bad; inexplicably so. Fans, reporters during training camp, our own players as well as other teams players all commented on it regularly, but given our history it was hard to believe our own "lyin' eyes). The teams was poorly coached. Did Mac step up? Did he lose his confidence and fall apart? You bet. He was awful by the end. But to suggest that somehow that explains all that we witnessed is hard to justify.
I think the Pats should put two statues out front in Foxboro; one of Brady and one for BB. As Tommy said, it was the both of them that allowed us fans the opportunity to witness a dynasty unlike any before and possibly never to be seen again. But Jesus, the notion that this team was well coached the last four years or so and that it was all Mac's fault is bizarre and just reflects people fitting the facts to their narrative. We do it in politics, race relations, etc.. And it's everywhere on this board.