His development just turned him into something that really can't prosper on this team. He's not good enough to be as selfish as he is. I would've honestly rather him learn how to dribble but that literally never happens with guards in the NBA. Ball handling may get tighter, but never actually better.
He doesn't have the mentality to be the guy we need him to be and he'll probably never get it. He would be great for a good team with an established system and go-to guys, but for us? We really can't afford to take the massive gamble that he'd ever make that huge mental leap (among other things). He's also not smart enough when it comes to getting to the rim. I'm not sure if he understands angles to be honest because so often he doesn't end up where he think he should when attacking the rim and it leaves the ball short and him looking for a bailout call that he'll never get in this city. He's a very athletic guy, but that really doesn't mean much if you can't dribble.