This season, I'd say:
1 - Bruno
2 - Rashford, Shaw, Pogba when he's not stuck in a midfield 2
3 - Wan-Bissaka, McTominay, Greenwood as a 9 or against a high line as an RW, Martial against a high line, De Gea
4 - Telles, Pogba in a midfield 2, Fred, Maguire, Lindelof, Cavani against a deep defence, Bailly,
5 - Deano, James against a high line, Van De Beek as an 8, Greenwood as a RW against a deep defence, Mata
6 - Matic, Martial against a deep defence, James against a deep line, Van De Beek as an 8, Brandon Williams, Van De Beek as a 10, Cavani against a high line
And I'd expect Telles to move up intro group 3 or 2 next year, Diallo to join the group 4s next year, Van De Beek as a 10 to move up.
Transfer-wise, real case for looking a this and saying that if Pogba stays it probably makes sense for us to prioritize signing the best possible players at RW and CB, and just give McTominay sitting with Pogba and Bruno ahead of him a shot and hope the 9s can rotate enough, then get a backup RB and a starting DM if provides.