I agree that the stats are meaningless now; however, his play is encouraging. He has all the tools to be a big steal. Usually guys in the late first round/second round are super athletes (Gerald Green) with no polis or polished guys with some flaw in height, conditioning, or health (BBD, Powe, Gomes, TA), but JaJuan seems to be the exception. He is a four year college player who can jump through the roof, play defense, and hit a jump shot. Sure he is skinny, but that can be remedied and is somewhat overrated (KG managed to dominate at 6-11 220 early in his career).
Again, I wouldn't save a place for him in thr rafters yet, but I think he is proving that he is a keeper who could turn out to be pretty good.