I think he can be a real star but he has to work on two aspects of his game:
1. Determination - He might changed his attitude from the start of the season towards the end of the season but it still needs work.
2. Quickness - His responsive ability isnt great because of his "not so good" quickness. Should he improve on that he would be really great.
Unless we cash in on him in this window - Its the season for him to either rise or fall.