You are right AC Milan has spent much of money to improve their team and with Massimiliano Allegri as new coach we should have to be patient. Allegri teams are known for starting slowly and getting better as season goes on so it will take few weeks for players to fully understand his style. His past success gives hope for good season nothing is guaranteed in football and only time will tell if his methods will lead to success this time or not.
Ac Milan brought him quality players both in midfield and in attack but they failed to do so in the defence. This is the main reason why I can rate their transfer done a one hundred percent. Though, they have players who can thrive until they go get a new defender when the January transfer window comes. I can't say completely where they would end up but best believe, first 4 has got to be their set target if I'm not mistaken.
Milan certainly did a good football market, but I honestly didn't like all the players bought, a lot of money spent but I don't see a real improvement in the team. Their objective will be to return to the Champions League next year and it will be very difficult to see them fighting for the Scudetto.