Kelly's feet look quicker, the look of cement feet is beginning to disappear. You can see foot drills taking hold. Over all Kelly is turning into a man, the lost boy look is disappearing. His body isn't just doughboy looking, he's gaining definition and chest width.
I think playing for the national team kept him in good condition, while still being able to work on his body and his game. Mentally he didn't turn down open shot, as much as in the past. His ball handling is getting better and better. The C's can do a lot worse than having KO with the ball in his hands at the top of the key.
On Defense he's putting a body on people, and using his size more. He's never going to be a big time rim protecter, but if he can be a serviceable defender, along with his upside on offense, he may be valuable. I like when he's in the game with Amir having his back.
I have to admit for a while, I lost faith in him having value at all.