We have to build this Italian core again, get Donna, Romagnoli (last year of contract and Milan feud with Raiola) and Locatelli.
Allegri usually needs five mids in his team, because he play both two and three man midfield.
In this case we have:
Benta, Rabiot, Arthur, McKennnie and Locatelli. The numbers look good but the quality is not there. Question is who will go? Arthur and McKennnie maybe could be counted as half of midfielder with their constant injuries, but for this we have Fagioli.
For attack it's 3 or 4 places (assuming it's 433 and 4231)
so we need 3 players for central roles:
Dybala, Morata and? Raspadori? Vlahovic? Probably someone much cheaper.
For wings we have:
Chiesa, Kulu and? That's basically all we have assuming Berna might be included in Romagnoli deal and Ronaldo leaves. Anyway I can't see Ronaldo playing lw in 4231 as wingers there have to work defensively.