Niles Standish
Footballguy
Belichick took a team that was super talented around the QB to 11-5 (10-5 with Cassel as starter) and the way many people in this thread talk it really hurts Brady's legacy. On the other side Haley takes a team (that was probably less talented around Cassel) to 10-6 (10-5 with Cassel as starter) and it was all smoke and mirrors.That whole season was smoke and mirrors. It was in the days before quantitative writers like Schatz, Barnwell and Clay had really broken through to explain concepts like regression to the mean, Pythagorean Expectation and turnover luck, but I remember it being really obvious at the time that KC wasn't a particularly good team and that their success wasn't sustainable. And sure enough, the following season they returned to mediocrity.
Not arguing with you that team probably finished well above what they should have. But the fact that Cassel started 66 games after the Pats season and went the same 10-5 2 years later tells me that he's not terrible. He's borderline starter level. If he wasn't he wouldn't have started 81 games in his career (which is very slightly more than 5 complete seasons). Backup level guys don't get that many chances.
That was my only argument on the whole thing. Cassel was one of the best backups in the league or one of the worst starters. Very similar to Brian Hoyer. He's not Curtis Painter who went 0-8 and never started again or Dan Orlovsky who went 2-9 career (although 2-3 was after taking over the Colts the year Manning was down once they locked down the #1 pick).