I have the impression that he got some good way full of himself, drinking too much of his kool aid, got a bit lost in terms of getting a lot of success and responsability too fast (basically less than 20 games in and he was the leader, present and future of the franchise) and thinking he was a bit bigger than he was, etc and all, but I don't think that It was something completely unexpected, inexcusable, out of norm for young athletes in those situations and positions, nor that he got absurdly way out of line.
The biggest "diva clash" I actually remember, and nearly only one I can really point out the top of my head, was when he forced his way back onto playing in the Memphis playoffs series, which could be visible he needed a bit more time, and maybe we could wait more for him - but with 5 games we lost Conley for the Clippers series, and Ingles and Bogey were clearly exausted by the month and a half or two they had to pick up the slack for Mitchell and Conley injuries in the regular season - something that later resulted in changes in the Jazz medical department. The most important event I recall apart from that was we using a last roster spot in his buddy Eric Paschall, which still was an okay use of an end of bench roster spot.
The two goody shoes Conley for example basically told Quin and/or the FO to shove It when he was told he'd coming off the bench, and after that the change to the starting lineup was never made.
His rift with Rudy is a completely mistery, as not enough was put out there to know how exactly that played out, who's more to blame, etc. But they clearly weren't in the best terms while winning 60 games. My take for the season after that Clippers series loss is that we lost in such an ugly fashion that the group as a whole couldn't buy the collective idea of winning It all while with basically the same roster, qualities and flaws. That they would only expect to lose by the same problems, and everyone played like they didn't trust each others back on the court, regardless of how they liked each other off the court. It wasn't just a Mitchell and Gobert disconnect. Ingles, Conley, Bogey, Royce, everyone played as less than the sum of its parts, and there was lots of friendships in that group still.
If anything, I'd relate this actual Cavs situation to that a lot, in that they had to make a move, not just to work the imbalance in their roster (two redundant small guards and bigs, while very shorthanded in their wings), even to at least make their players believe that If they lost again, at least It would be for another reason. And I don't hear any noise of some particular beef of any Cavs player and Mitchell.
