This (from tuesday) is still a really good post. You could argue more than 7 if you factor in a Perraud / Tino replacement, too.
I think, after last week, the squad is almost at a point where you can start to directly replace people leaving.
Remember RM saying on sky after the Sheff Wed match that our signings wouldn’t be squad players — Likely starters. (Obviously all sorts of things can happen, but a little insight into their thinking).