Turner just happens to fill a need the C's have, with his unique skills. Hate him or not.
Put him on a team that has plenty of players that create their own shots, and handle the ball well, and he's gonna be buried on the bench, because of his flaws.
His size, 6-7 in the back court is also a desirable trait the C's need. We have smallish guards, other than Smart. Like him or not, he can get you points in a hurry, and get the offense going...OR he'll turn the ball over enough to play you out of the game.
The biggest flaw I can see with him is, when he flat out doesn't have it, he never takes his time, and let's the game come to him. Rather, he just keeps trying to force it, until he's taken out of the game.