As to the original question, yes. He has good hands, good footwork within 8 feet of the basket, a nice jumphook, is a decent passer, has good rebounding recognition and anticipation (which he has developed, as he has his shotblocking).
Now he definitely still lacks a lot: he's intimidating in the paint but not an outstanding team defender; he can't reliably score in the halfcourt offense if he can't overpower his man; and he's not a leader. But all but the last can be changed. It doesn't seem that he's lacking in work ethic.
He could really stand to bulk up his lower body, too.