We could try a 4-4-2 tbh.
--------------------------Higuain--------------------------------------
--------------------------------Dybala---------------------------------
Costa---------------Pjanic------------DM/CM------------Bernardeshi
Sandro--------------Chiellini---------CD-------------------De Sciglio
--------------------------Buffon----------------------------------------
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Rumors seem to be suggesting there is still a gulf in negotiations although Marotta were prioritizing Costa press day, Schick stuff and De Sciglio and Szczesny transfers. Supposedly we offered 40+2 but Fiorentina want 40+10. We also offered 40 + Sturaro apparently. Problem is not sure whether Fiorentina want that or whether Sturaro wants that either.
My guess is that if this deal happens it will be 40+5. I don't know what kind of salary he will be on but I think he could be just making 2m net. Still he will end up costing the club ~13m a year.
Other thing is I am not sure whether he would be a starter under Allegri - I can so see him going with Costa-Dybala-Mandzukic. He will probably be first change for one of those though.
I could see a different scenario. Costa will be on bench. He is coming from different league. Mandzu with his workrate. But Mandzu is not right side player really.
-----------------------Higuain----------------------
Mandzu---------------Dybala-----------------Berna
As the season progresses Costa will take starting position from Mandzu who will become rotation option in the squad between league games and CL games.
Both Costa and Berna will be of similar price but lets remind that Costa is still a loan. So he is less of a "oh no our new signing on bench". While Bernardeschi we are buying outright if we buy him. Add the factor that Bernardeschi is serie a proven so more likely to start.
Reminds me that Alves didnt start all the time in the first part of season. But guys like Higuain got to the XI very quickly.
This is a thing for Allegri for many years now. He doesnt push players from other leagues to XI instantly. We could have a case were Costa is on bench in serie a but plays in CL. Also Allegri is rotating for the 2nd part of season. He has said himself many times, the most important part of season is the jan-may/june period. To time the momentum right.