Good question & difficult to answer. I'd say players with big question marks are
Helander, Katic, Simpson, Kamara, Middleton, Roofe, Kent & Morelos.
As well as the new signings there's a couple of youngsters I'd like to see a bit more of next season, Leon King, Charlie McCann & Alex Lowry.
He basically replaces Balogun in the squad. Goldson will be the main man, and whoever stays and is fit and in form out of Souttar, Helander & Katic will partner him.
That's assuming Big Bassey gets moved back to left back, he might have played his way into the Centre Back position end of season.