Yes, Napoli can continue to do well, they have acquired important players who can really make the difference, the fact of having such strong players means that Napoli can have an excellent championship, but there are teams like Milan who can really rise from the ashes this year so watch out for them.
It has what it takes to win again this year, given that it has no serious competitors.
So if you ask me, sorry if I'm being mean, the only one who can lose the Scudetto is the team itself, as a whole, and that means Napoli.
If he continues like he has done, I don't think he has any rivals this season.
Why would you say that they don't have any rivals challenging them for the scudetto, I mean they literally almost lost the trophy to inter Milan who were actually the ones leading the league until they had some set backs in their play which really affected their gameplay and gave Napoli the upper hand and I believe this was even due to the fact that inter Milan attention was focus on two competition which is the champions league and the seria A, I think they do have an active contender for the title this season cause inter Milan can still do something.