and that's not the main issue with it

out of rakib's outgoing players, neither zaza, nor coman aren't currently in our squad, and mandragora is only 19. however, all incoming players are over 21 (save for lyanco), and only spinazzola would count as homegrown.
in: irrelevant (currently in our squad), foreign, italian, foreign, homegrown, foreign, u21, foreign
out: irrelevant, irrelevant, foreign, foreign, u21
summary:
in: 1 irrelevant, 4 foreign, 1 italy grown, 1 homegrown, 1 u21
out: 2 irrelevant, 2 foreign, 1 u21
so that mercato is simply impossible, considering the current rules. also, our "italy-grown" quota of 4 players is full at the moment, so berardi would be considered as a foreign player, too. so rakib should either pick 2 out of sanchez, tolisso, kolasinac, milinkovic-savic and berardi, or he should sell 3 more "foreign" players like alex sandro, higuain, pjanic or maybe dybala to make room for the likes of kolasinac, berardi and milinkovic-savic.