You're overrating it. They finished out the season 1-4 including a total beatdown in the wild card.
There have been plenty of rookie quarterbacks who have had good (or better) seasons over the past 20 years...
Roethlisberger 2004
Matt Ryan 2008
Cam Newton 2011
Russell Wilson 2012
Luck 2012
RGIII 2012
Winston 2015
Prescott 2016
Mayfield 2018
Herbert 2020
That's 10.
Again, the end result of the Patriots season was 1-4, which is a pretty bad record. 9 of the teams I mentioned had better records and/or went further into the postseason than the Patriots (i.e. they had better results than the Patriots). A 10th beat them head-to-head. So it's not merely what I think.
I'm sorry but it's Ludacris to say the quickest path to a championship team was moving on from the best quarterback in the NFL. Brady's first season as a starter in the NFL... Super Bowl title. Brady's first season with a new team... Super Bowl title. Brady for 50% of his career... Super Bowl. He's pretty good.
The Patriots chose a different path... year one was a mess, year two showed some promise but ended disastrously. We'll see what's next. I suspect if they go 8-9 next season there will be plenty of excuses. Belichick has to at least win another division title and/or make it back to a conference championship game before he retires. He can't win 18 of 19 division titles with 9 conference championship appearances with Brady and go 0 for whatever without him (currently 0-9)... it'll be too damaging to his legacy.
All those QBs, with the exception of RGIII, had way better weapons in their rookie years than Mac did.
Roethlisberger - Hines Ward, Plaxico Burress, Antwan Randle El
Cam - Steve Smith
Russel Wilson - Golden Tate, Doug Baldwin
Andrew Luck - Reggie Wayne, TY Hilton
Winston - Mke Evans, Vincent Jackson
Prescott - Dez Bryant, Cole Beasley, Jason Witten
Mayfield - Jarvis Landry, Nick Chubb
Herbert - Keenan Allen, Mike Williams, Hunter Henry, Austin Ekelar.
Contrast that with Mac who had Bourne, Henry, Agholar, and Harris. Mac's rookie year was excellent, especially what he was given to work with. Brady's rookie year was on the bench. He couldn't even beat out Drew Bledsoe.
And it's easy to go to another team and win the super bowl when you take Fournette, Brown, and Gronk with you to that team, which is already stacked almost everywhere. This is like Bill taking Josh with him to Kansas City and winning a title his first year there.
Nah that won’t damage Bill’s legacy (Spygate did though unfortunately and that was all on Bill).
It’s not crazy to think a coach isn’t as successful without their all world QB. Noll’s record without Bradshaw isn’t flattering either. Bill is under .500 without Brady, that’s indisputable and it’s right there in black and white. Truth hurts and is definitely one argument against Bill being GOAT coach. I don’t think that erases his success with Brady….. it does prove though that coaches are only as good as their great players and not the other way around. Great coaches can’t make weak teams and QBs champions by themselves but great QBs can. Peyton Manning took Jim Caldwell to a Super Bowl. Caldwell was not a great or even good coach at the time
Spygate may have damaged his legacy, but it also damaged Brady's since Brady was the one getting all the stolen information on his headset. If Bill's first three super bowls are tainted, then so are Brady's. Do you really want to go there?
There are plenty of coaches who won super bowls with weak QBs like Joe Gibbs, Parcells, and Peterson.