Teams like Milan and Inter also previously won the scudetto, but in the end Milan and Inter also failed to defend the title. Especially about Napoli, which basically Napoli is not a strong team from season to season to be at the top of the standings. So naturally, if in the next season Napoli cannot defend the title. After all, even though for example Napoli still has a squad with the same strength as last season but still, after all defending the title is a difficult job compared to getting it.
you are right, the majority of Serie A teams that secure the championship struggle to maintain their title defense, with the notable exceptions of Juventus and Inter Milan. These two clubs have successfully retained their Scudetto titles in the subsequent seasons over the past two decades. Milan experienced a downturn after their Scudetto victory, working hard to restore the team's strength before reclaiming the title again few season ago. as we know Milan's consistency was lacking in the previous season. Napoli, now under the guidance of a new coach, appears to be in need of time to enhance their team's performance.
It is difficult to say which team is the favorite for the Serie A title next season. The overall condition of the Juventus team is not good. They are not They do not form a stable squad yet.Their performance is anything but erratic. On the other hand the situation of champions team napoli is not that much good. They have sold several players on the team. Osimhen is also likely to be sold by Napoli. More importantly, their coach has changed. We don't know how napoli will perform with the new coach. ac Milan and Inter Milan are in relatively good condition. AC milan spent around more than 110 million to strengthen their squad. Inter milan's situation is also quite good now. I think Inter milan or AC Milan are more likely to win the title next season.