Haven't paid much attention to Johnson yet, so I can't comment on him, but I'm not sure Ayo is a PG at the next level & I know that Cam Thomas isn't one
I like Thomas' stroke & scoring instincts, but that dude is a pure gunner.
I need to see Nix play some games to get a feel for him, because right now Jared Butler is my 3rd favorite PG in this class, and I have a hard time saying he's going to be a top 20 pick.
This is why I've been trying to figure out if Keon Johnson could be groomed into a PG down the line. His skill-level will certainly need polish & it'll take some time before he's ready to take the reins, but the athletic & mental pieces are there (IMO)...plus his defense should help him get onto the court early on as a 5th guard who can make a positive impact without needing high usage.
We'd need to make another move for someone to platoon with Quickley in the PG spot in the immediate future, but that's looking like it'll be the case no matter who we pick if the lotto gods don't hook us up.