Give me Seri, either Sanchez or Bale and a cheap left-back we can plug in who can attack and defend (say Jonny from Celta or Toljan looked alright at the U21). Sell Darmian, who is alright but not what we need. Keep one of Fosu-Mensah or Tuanzebe and loan out the other.
-----Lukaku----- (Rashford)
Sanchez---Mkhitaryan (Mata, Martial, Lingard)
---Pogba-Seri-- (Herrera, Pereira, Fellaini)
-----Herrera--- (Carrick, Blind)
Shaw-------Valencia (Jonny, Blind, Young, TFM/Tuanzebe)
--Lindelof-Bailly------ (Smalling, Jones, Rojo, Blind, TFM/Tuanzebe)
-----De Gea---------- (Romero)
and when we play 2 in the middle one of Seri or Herrera sits, Mkhitaryan or Mata is the 10 and Martial or Rashford starts out wide opposite Sanchez.
Then next summer, we're looking for another attacking star if one is available (Griezmann, Ousmane Dembele) a proper Carrick replacement (if it's Dendoncker, we could even buy him now and loan him back to Anderlecht for a year (6 group stage CL games, some Europa games after they get knocked out and a season on a team where they have the ball all the time and they won't bench him because he's clearly first choice is basically the best possible loan anyways) and Valencia's long-term replacement who can spend his first season competing with him.