That doesn't work.
You win a SB one of three ways:
- Have a good QB on a rookie deal that allows you to have a great roster around him
- Have a franchise QB on a big contract but shuffle things around to have a 1-2 year window to go all in by mortgaging future years, where you'll be in cap hell later for years (Rams/Stafford, Bills/Allen)
- Have Patrick Mahomes
Getting a franchise QB doesn't really mean that much after that rookie deal. If you're going to pay a QB a Herbert, Burrough, Allen, Prescott, Jackson type of contract, he can't be just a franchise QB. He has to be a future hall of famer. Otherwise your only option if you are going to win a SB is shuffle your cap like the Rams did, make a one year or maybe two year push, and deal with the cap consequences later.
Burrough, Allen, Jackson, Prescott, Herbert, Hurts - all of these guys best window to win a SB has already closed. Are they better QBs than they were when they were at the end of their rookie deals? Sure. But not enough to offset what their second contracts do to hinder the rest of the roster. I'd give maybe Herbert a question mark only because I think he has a massive ceiling and has been held back by terrible coaching.