Without their top scorer and their best coach, they'll have a hard time achieving good results.
It's very early to draw any conclusions. There are many good players and coaches as well. I'm sure that Atalanta will cover the departure of Retegui with a young and prosperous player. They know how the system works, and that's only for their benefit. You sell high and you buy low (with prospects).
Milan fans are very happy with the arrival of Luka Modrić
Honestly, I don't know how happy they are for signing Luca Modric at his 40s. Italian soccer is one of the toughest leagues, and injuries are common. Especially for players in Modric position. Sure, his experience and knowledge are undeniable, but I have serious concerns about his endurance and physicality in general.🤔