Think those positions will depend on how this season plays out.
CB - If Rudiger, Christensen and Tomori improve and play well all season, then we already have a strong core there. Not convinced about Zouma at all but I guess if he does improve etc, then he might well stay. Plus, we also have Ampadu out loan and he might be an option for the position.
Wingers - If Pulisic comes good, he'll be the 2 main choices with CHO. Then it'll come down to whether we retain Willian or Pedro or even both as their contracts expire in 2020. Hopefully, we'll do neither but think we'll retain at least one of them.