I don't know how we'd field Tevez, Llorente, Cerci and Berardi so that all 4 get constant playing time. They all deserve their minutes.
They would have to get their spot like Pogba did. It would be really hard. Berardi would start as a backup, Cerci used as a rotation player. I think they'd be fine with it. Tbh, Tevez isn't being absolutely magnificent for us. I could see Berardi/Cerci rotating with him. Plus Conte would definitely be more open to using 433 every now and then.
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I think a very realistic and good mercato would be:
Vucinic = + 10M
Offload, for watherver price: De Ceglie, Motta, Pepe
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Giovinco + 1/2 Immobile - 2M = Cerci
1/2 Berardi = 10M
Fernando on a free (makes sense, since Conte is keeping 352 and Asa as a LWB)
Bring Fausto Rossi back
And actually spend around 5/7M in co-owns and youngsters - Murru on a free, Baselli, Zappacosta, etc.
Starting team would remain exactly the same - Conte won't take any of the 3CBs out in the foreseeable future - traditional 352
Backup team would be pretty good in a 433:
Storari / Padoin - Caceres - Ogbonna - Peluso / Fernando - Marchisio - Rossi / Berardi - Cerci - Quags
Padoin and Peluso can be decent FBs IMO. That's a pretty good squad IMO. Spending nearly no cash.
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We all want a starting LB to be signed, but Conte would only prioritize this if he decides to change to 433 next season. Not happening, I guess.
So going for a rotation DM makes sense, since Asa will remain as a perennial LWB.
Oh, and I forgot about Isla. Juve still has to buy his other 9M half. Just find a club who'll pay it and ship him out.