As I see it, there are mainly three options for next season:
a) pay Brady what he wants, give him guaranteed money, bolster the offense and for salary cap reasons make that a multi year contract, so you can push as much into future years as possible to make that happen. Basically sacrifice the foreseable future for 1-3 good years. Then make a hard cut, go through cap hell and rebuild.
b) let Brady go, hire a bridge quarterback, a journey man, to give Stidham or maybe a new rookie of this years draft time to develope. Try to make the transition as smooth and successful as possible, defenitely compete in the AFC East, maybe win a game in the playoffs.
c) let Brady go and do the cut now. Continue with Stidham, draft a new QB, maybe cut other veterans like Gilmore and do a complete overhaul - whatever BB seems necessary.
I am missing Bill Belichick in this discussion here. We do not only have the GOAT at Quarterback and should make it possible he retires as a patriot. We also have the arguably best coach to ever coch in the NFL. And that guy still has some goals in his mind, some records to break.
So if you sacrifice the future for Brady, you are at the same time hurting Belichicks legacy. And I dont think there is a scenario with Bill an Tom working for the patriots next season and also paying Brady big time money on a one year deal. A multi year deal is not in Bills interest. If Kraft insists keeping Brady for whatever he wants, I could envision Belichick leaving. He has feelings, too
Therefore I am not sold on option a). If its gonna be b) or c) is up to Belichick, though it will be hard to see Brady playing for someone else, while paying 15-20m for a bridge guy, so 28-33m against the cap for the quarterback position.