I watched all three matches, and we can regret that Verona didn't score. They were the better team in Naples.
Milan were tactically sound. They knew that Atalanta will be tired so they let them all the possession in the first half, defending tightly and not allowing Atalanta any space. They were counting on counters in the first half and then attack in the second half. Now they'll keep playing like this in the second too.