I was having this discussion today.
We're not in a bad position currently. Our form dropped off when Martinez and Varane had their injuries, and we clearly miss a striker.,
If's and buts, but if we did have Kane this season, scoring his goals, I think we'd have been at least challenging for the title.
With that in mind, I came to the conclusion, I think we need 4 players, with another possible 3, depending on certain players leaving.
In defence, I've been happy with Lindelofs contribution, but feel like Maguire needs moving on. Kim with his release clause seems like the good choice, although N'Dicka on a free would also keep the spending down.
In midfield, I think it's time we move VdB, Fred and McTominay on, but I think we only need two people to replace these as VdB hasn't featured anyway. A double swoop for Caicedo and Mac Allister would be fantastic, but out of reach. Caicedo makes sense, right age, proven in the league and can cover Casemiro when he doesn't play. I think the links to Mount makes sense. He can play backup to Bruno, but also, along side Casemiro. Problem is the fee. The 50-60m seems a lot for a player coming off a bad season, so cheaper alternatives would make sense.
In attack, It's just obvious putting Kane here with little to no explanation
That is my 4 nominations which I think is enough for the summer.
The other 3 I mentioned are if we moved on De Gea, Dalot and / or Martial. Then we'd need a keeper, Right back and a backup striker.
In: Kim, Caicedo, Mount, Kane
Out: Henderson, Telles, Maguire, Bailly, Jones, Tuanzebe, VdB, Fred, McTominay, Elanga
Loan: Mejbri, Pellestri, Amad
10 out and 4 in seems crazy, but 3 of them have been on loan this season, Jones and VdB haven't features and we have plenty of cover for Elanga as is.