If Reef is playing significant minutes (15+) next year, let alone starting, we are in for a world of hurt. You have Rati coming off an injury, Nembhard, and TyTy is a combo that can play PG but will likely play the 2. But if none of those 3 guys can wrest a starting PG slot away from Reef that means that all of them are busts or Reef has learned how to shoot, play under control, and read defenses.
I truly hope he has a transformational off-season, but he's a defensive specialist and I don't see him as the long-term answer or even a bridge option at the lead guard spot. But Mac is a big "trust" guy so we'll see. But I'd rather take our lumps with our young guys.
I agree that a transfer wing should be looked at unless we can get a senior to come back for their freebie year. Personally, I'd take DJ as he would fit in perfectly with what we'd need. His versatility and energy would be great for a young team. Plus, you keep a rotation of Bishop/Kalk at the 5, get to ease in Miller at the 4 off the bench for a different look, and give Jones/AOC time to develop on the perimeter.