Unexpected teams getting unexpected results on early weeks may not be indicating their whole season. Some teams get some good results on a few weeks results, but then could become bad, and on contrary some good teams could have bad results on early weeks and then become much better later on as well. For example I believe that Juventus will finish very well this season, I think they have a chance to be the winner or second place, and Inter looks like the other team that will either win or be second place.
Milan looks bad and everyone says they are much worse, but I think they will recover. On the same logic, Udinese and Torino will not do that great, they had a decent start but they will not end up that top at all.
That means that those who perform badly at the beginning of the season will not necessarily show bad things again in the journey of the season until the end, all teams can improve themselves, change more effective strategies to fight each of their different enemies.
Juventus sometimes looks convincing in every season and is always talked about as a candidate for the winner, but what they did like last season was lose their consistency in the middle of the season until the end and produce disappointing matches, this is what I doubt about Juventus even though this time they performed well at the beginning of the season, so did Inter Milan but I am quite sure about Inter Milan if the performance they will show is like last season.
Milan is not getting much support now, criticism is pouring in on them, but hopefully they can bounce back.