That's why you hear Doc and Danny talk about using him at the 3. As a small forward, he can win battles in the post with his length, and his high center of gravity is less of an issue. If he shortens that release on his jumper, he could also shoot right over most 3's. So if he's agile enough to defend the position, there's a lot to like there. He has a long way to go, though.
I think it's been just Sam Mitchell during the summer league who's talked incessantly about JJJ having to become a 3. When he mentioned that to Ainge, Ainge didn't seem to buy it.
I can't imagine JJJ as a 3. He just doesn't have the dribbling ability or long-range shooting wing players must have. I don't think he'd be able to stay in front of perimeter players either. Even though he was DPOY in his senior season, his defense was overrated and the times he found himself guarding smaller players, they frequently blew right past him.
JJJ has two ways to score: turnaround in the post and spot up long mid-range jumper. There are a lot of strong and big SFs so it's not a given that he can post up and wing players do not get free for spot up 2s like bigs do.
