I'm pretty sure that Brogdon didn't like being floated in trades, in addition to understanding that he would still come off the bench. I'm not 100% on this, but I think it's why he was less than content.
Players are paid big to play, and GMs are responsible for the roster. A good GM will consider how players fit together. I think Stevens has put together an excellent team on paper. I also think the bench is underrated.
Jrue is a competitor. He's older than both Tatum and Brown. If he's the leader, I'm ecstatic.