if Savic starts who is dropped from the current XI?
Bonaventura.
I love Jack, but he is simply not that talented to start for a team fighting for CL spot.
Mezz'ala has been a must for years - it doesn't have to be SMS necessarily, but we have to buy a good one for this spot. Using there Berto and Jack is too risky since both are injury prone and incosistent.
Donnarumma (Reina)
Calabria (Conti), Caldara (Musacchio), Romagnoli (Zapata), RR (Laxalt)
Kessie (Bakayoko), Biglia (Montolivo), new mezz'ala (Jack)
Suso (Castillejo), Higuain (Cutrone), Hakan (Borini).
There are several positions like Biglia's where a bench player isn't worse and possibly better than a starter, at last we would have a balanced and wide squad. Leaving out Biglia and Borini we shouldn't be ashamed by using anyone of those players. Next year we add a great regista and a great LW, shipping off Biglia and Borini and we are ready to fight for scudetto.
And remember - there was a bigger gap between Juventus from their first scudetto season under Conte and Milan of that time than between todays Juve and Milan. Anything is possible in football, even if I don't believe we will have as many help from referees as Juve had in that season.