Kobe Bryant was once disgruntled with the Lakers because he wasn't sure of their commitment to winning.Wasn’t paying much attention, but was AJ Brown openly disgruntled last year? Wouldn’t seem like a fit character-wise if so.
I use that to say that all disgruntledness is not necessarily a bad reflection on character. And I am not saying that AJ is Kobe.
Is the disgruntledness because of selfishness, such as a monetary motive, or because of passion for the game and desire to win?
There's a difference. That needs to be evaluated before he's deemed not a fit due to character. Because as Snead just said a day or so ago, their culture is all about passion for the game and winning.