If Carter ends up like Davion then that probably speaks more to the balance of the roster or usage more than anything. It's funny with Carter, people really seem to think he's a PG when while he can play some PG he's not. Or at least he's not stuck there. He's a playmaking SG that should be able to guard multiple positions. Had Davion been that, with the size and athletic ability of Devin he'd still be here. I've seen some of the vids of Devin working out, he looks to have put a little size on as well. He's probably comfortably in that 205-210 range weight wise. With his frame and strength, he's going to be a tough handle for anyone physically.
When it comes to the "4" spot thing, I don't get it either. Brown has played quite a bit of Keegan, Lyles, and Domas together. Lyles IS a 4. Now Jones is taking those minutes and has shared time with Keegan at the 3 as well. The problems continued to persist. We saw it last night, it's the defensive formations and lack of awareness of some of the Kings non defensive oriented players.