I feel like he wanted something different from Bill and it led to him leaving. It could have just as easily led to Bill quitting.
I think by the time they were down to brass tacks, what he wanted was a loaded roster to max out what time he had left, and not to pay for it through his own discounts. He was tired of it by that point, I THINK (and how do we really "know" anything but where he ended up?)
Now, I do think that he had been in that position in the past and had sucked it up. I do think something started souring around the time of the Jimmy G unloading, though I wouldn't trust the Wickersham dramatization. Something happened to make it "snap." You ever been in a job and towing the line etc., believing what you're told to, figuring they pay you to... then one day you just go "**** this," tender your resignation, and consider them lucky they got a 2 week warning? I think he hit the super high paid elite athlete version of that. I don't think "**** this" is different whether you're making 20k or 20m. Maybe I'm wrong, I dunno. It sure isn't different for the amounts I have made, although they stopped short of that elusive seventh figure
I just ask you, how is Tom Brady going to play with a loaded roster in NE vs. what he has in Tampa? Not gonna happen. Could TFB stand that being the case? Sure, he had done so in the past many times. Did he want to tow that line? Might have, for the fans, for the adopted hometeam, whatever.... but didn't feel like going that way again.
So lure Mo Lewis out of retirement and let the Kyle Trask era begin. Maybe just Pollard.
And I'm on Team Put Senior In The Home Now, just sayin'.