I can tell you right now if BB ties his coaching career to Mac's QB career he's gonna end up getting fired by Robert Kraft.
What he has to do is draft a new franchise QB and tell the owner he needs a couple of years to 'train up' the new QB.
Mac Jones was projected only to be a mid-tier QB at best during the draft process.
And now he's shown us his cards, he's barely even a game manager -- Throws too many interceptions, has zero composure in the pocket, terrible body language when he's beind in the game.
In other word's he 'ain't that guy' and he's never going to be 'that guy'.
BB used to get away with drafting/signing lesser offensive talent and stocking up on defense because Brady turned the crappy ingredients into a good offense with the sheer ability to elevate everyone around him. Mac ain't that type of talent.
BB needs a 'special talent' at QB to win or else he reverts back to a pumpkin, IE Cleveland Belichick.
He's now 80-93 without Tom Brady's services.