He was the top pick for a reason. His arm must really have been killing him to no end. If Orlando are patient with him, they could get an all time steal if they can reteach him that shot.
Someone in the comments said it best on this video. Orlando need to take him to a random gym and have him play 1 v 1 for a few month. No pressure, no cameras, no nothing. Have him just play basketball with no expectations or pressure. Get him to rebuild his shot and his confidence.
I've never seen such a bust that also has such talent that's so near but yet so far to unlocking. Even if it means putting him on ice for all of this season and next, if you can get him going again he will prove why he was the top pick.