Williams, Funes Mori...hopefully both will be gone.
That leaves just Keane. Who I'd personally ship out as well. Turning circle of a combine harvester, one-paced, positionally meh. Very good at heading the ball in his own six yard box.
So at the very least I think we need two first choice starters (altho I could live with one, and Holgate having a run alongside whoever we brought in, but we'd still then need Keane plus one other. So two, yep!).