There is room for all three, probably.
Monk, Fox, Adebayo, Briscoe, Willis, Hawkins, Mulder, and Humphries gone (most likely).
That leaves Gabriel, Killeya-Jones, Wynyard, and Diallo back.
We add Green, Alexander, Vanderbilt, Washington, and Richards.
That leaves four open spots. Bamba gets one. That leaves three spots for three guys.
If he doesn't plan to take all three, I think it would be whoever signs first between Smith and Baker.
I think Johnson has a separate offer.
I think this signals that Knox is pretty much off the board, though. That or someone else is leaving (Gabriel?).