The Deshaun/Houston story. Houston we have a problem, I don't see how he stays,
https://www.si.com/nfl/2021/01/16/texans-chaos-deshaun-watson-unhappy-how-jack-easterby-kept-his-job
And then there is this, not sure why Miami would have to take Fields,
https://ninerswire.usatoday.com/2021/01/14/nfl-mock-draft-49ers-trade-tua-tagovailoa/
He does appear stiff, but i was thinking more from a leadership point of view. If the guy isn't willing to give it all he's got, how would he expect his team mates to have his back, hence the article on the lack in faith of Tua.
In that last game against the Bills, with the playoffs on the line, and the dolphins are driving to score and your starting qb slides instead of going all out to score. Players saw that and said, nah, he ain't it.