So you're saying we shouldn't have signed Dybala
Zaza has already justified his price tag and we can easily sell him for profit if we so choose to do. Hernanes was initially a flop but he has recently done his part although the price tag is still not justified.
Players going out: Tevez wanted to leave and we got the best possible replacement who arguably is already on par with Tevez. Pirlo wanted to leave and he wouldn't have been a starter anymore Marchisio is way better nowadays. Vidal is the only one where we lost quality but Khedira is still doing good job.
We wanted to have tactical freedom as we are not a team that wants to have just one possible formation and I'm pretty sure Allegri is happy with the players he got with some exceptions.