Jameis Winston is a volatile QB who floats between slightly above league average in a good year, and below league average in anything else.
Last year, he had an ANY/A+ of 99 (100 being average)...90 Rate+.
He makes big time throws, but follows them up with many bad ones. His INT%+ last year was 60 (average is 100), which was historically bad.
The problem with Winston is this...this is just who he is. Last year was not really anomalous. You have to put up with the ridiculous turnover rate, at times is historically bad, to get the good. You're never really getting a better QB. He's consistently volatile, which makes him kind of a unicorn historically.
I can see someone preferring a less volatile QB than him and probably wouldn't argue against it too much. I'm not sure I'd say thats Teddy Bridgewater, that might be dropping a little too deep in the dented cans, but yeah. He's a game manager whose production last year was pretty much all scheme. I can see the Buccaneers WANTING to move on, but I am not sure there is much out there better, and that isn't saying much for Jameis Winston. He's be somewhere in the 20-25 range of starting NFL QBs, to me and you're not getting much more upside due to his insane turnover rate.
Oddly enough, Jameis' best season was also the Buccaneers worst a few years back.
Having Jameis for one more year and drafting a QB would probably be the best move for all parties.