How much do you want to bet that IT is going to focus on putting up stats when he plays for the Cavs, to have something to point to when asking for a max deal soon?
Problem is, he needs the ball in his hands a lot to do that, and he will be slow getting back to speed, while the Cavs need to gel going into Lebron's last run in Cleveland, and....Lebron is the one who will handle the ball most of the time.
If they turn IT into a 'stand in the corner and shoot' type of guard, he will look awful.
If IT instead handles the ball primarily, and does his thing, Lebron and the Cavs will suffer.