I would have Seth and Wilcher at the point rather than RJ or Caleb if he comes back. RJ is good at creating RJ shots, I don't love him creating for others. Lot of folks worry about RJ at the 2 due to his size and sure, he may be 5'10" and he may in around 175lbs but that is one tough lil joker, one tough little weasel as his mom would say, witness his rebounds last season, many coning from deep in the paint that he just went and got. I think for the point, RJ may be about a half step slow but as a 2 guard I think he would be considered a half step quick for the position.
Jimmy Johnson always coached teams I hated (LOL) but for my money may be the best football coach ever. His plan was to feature speed/quickness/toughness, he went smaller as other teams went with size and strength. He would take a fast corner and make him a safety, a safety and make him a LB, LB and make him a DE ect. He took the quickness advantage over size and strength and was huge successful every place he coached. That is my point with RJ, is my point in suggesting Caleb at the 3 if he comes back, is as well my point with Seth at the point (I think Seth is the quickest back court guy we have more than RJ). I still want my big men big, I strongly believe that big men are the game changers.