Juventus built a great roster but they are mainly injured or missing, which means that they are out of the picture for the time being, Milan is good and all but they have too many players who wants to go to better teams, so Inter could use this to win the title.
Before that, Inter Milan must be able to resolve what they lack first. Because it's impossible to take advantage of other teams' shortcomings if they are still in bad shape as we see now. Moreover, there are many other teams that are now playing better than them.
They must immediately fix what is lacking in the team.
Reflecting on last season, I actually didn't see any significant improvement from Inter because it could be said that their performance was still the same as before even though there were some additions.
Obviously this needs to be fixed soon but the problem at the moment is that Inzaghi is confused with the existing players and confused about what scheme he should do at the moment.
Lukaku also still has no hope when an injury haunts him.