Atalanta - Milan are even much worse. Not surprised with Atalanta but Milan did a little. Because they have a better manager like Allegri now.
AC Milan are still not finished their transfer plans. They recently reached an agreement with Chelsea for Nkunku, which could potentially improve AC Milan's attack. although a little doubtful, I hope Allegri can bring AC Milan much better, after become mediocre clubs since its last title under Pioli. There's a lot of work for Allegri to do.
It is understandable to not have all your transfers ready, I mean they have time until the registration period ends. But that doesn't mean they are a terrible team that needs 10 new players until then. They will make maybe one or two more move at most. Rest of the team is already there, and for some reason they still lost.
All these new players, and Allegri, and even Atalanta losing all that blood, mainly Gasperini, and yet they are still not doing that great. It's really sad to see this, and I am pretty sure that we can see them recover from this and do better, but it is not going to be easy, and we are not going to end up seeing them do a great job, we should be expecting them to end up with a lot better results if they want to mean for something.