Napoli couldn’t achieve anything in the Champions League even in their best years with Spalletti, and now I also doubt that it’s worth expecting anything from them. As for Inter, perhaps the match against Udinese showed that without Inzaghi they will be weaker, and I’m not sure they are capable of repeating the same success in the Champions League again. Juventus, by the way, is also not the kind of team that can go far in this tournament.
This means that you are indirectly categorizing Serie A teams as weak teams in the Champions League this season; from your expressions, it shows that Napoli at their best last season couldn’t do anything in the Champions League, the same as Inter Milan; we can’t say anything about Juventus because they were very weak last season except if they can do well this season.
I agree with your statement because almost all the top big teams signed more players to increase their squad depth against this season; and almost all these teams you mentioned above don’t have good players to challenge any of the top teams in the Champions League this season. Therefore, I don’t also expect Inter Milan to repeat the same thing as last season, and I don’t also think Napoli will go far in the Champions Leagues this season the same thing with Juventus.