What I think will happen (not what I want to):
OUT: Morata (he would only stay if we can assure him a starting position, but Allegri won't give up on Manzukic) - 25M
IN: Berardi - 25M
OUT: Hernanes (loan), Pereyra (15M) (he's not looking driven enough, and we need to capitalize - we could sell better to an EPL team but this isn't a Marotta specialty)
IN: Lemina (10M), Saponara (18M + Lapadula and Caprari on loan with on option to buy/buyback - Marotta is crazy about Saponara, he called him Italy's asset that should be taken care of, the other day)
OUT: Cuadrado (Conte will demand him) - end of loan
IN: Vrsalko/Widmer (or whatherver his name is) - 15M + 1 or 2 newly signed youngsters on loan with option to buy
OUT: Caceres (free)
IN: Benatia (2M loan + 22M option to buy)
OUT: Neto (8M) (he's not satisfied and will probably want to leave)
IN: Marchetti or some other reliable veteran with good squad spirit (2/3M)
IN: around more 20M on young Italian players to be loaned out - Lapadula, Caprari, Masina, Diawara, Ganz, Castrovilli, Embalo, Barella, etc (I believe they will invest heavily on these young guys this summer)
Total spent: around 45M.
Starting team: 352 - same as this season's.
Bench: Marchetti; Widmer, Rugani, Benatia, Evra; Lemina, Sturaro, Asamoah, Saponara; Berardi, Zaza.
This without considering an eventual Pogba sale. If he's sold, I have absolutely no clue about what Marotta would do.
Actually, this mercato version I posted is my pessimistic vision. Hopefully it won't happen this way.