Yeah but look at the 3 lost....
Mucha - A back up GK can be found on a free so easily replaceable.
Hitz - Was mainly brought in to allow Barkley loan time away who I see as an important player in the squad next season. So IMO already been replaced.
Neville - His RB duties are already covered with Coleman, Hibbert and stones. CM a little short so a CM needs bringing in.
I see the point if no one leaves, would be hard to spend 15M on a striker and no one else. But I see players leaving so really shouldn't be the case. The likes of Heitinga Naismith Fellaini and even jelavic could all move on. If that's the case we could still break our transfer record and bring in 4/5 players.
Think it's gonna be an intresting summer.