Napoli are probably favorable to win the scudetto this time around with their consistency in maintaining their winning streak. Not only in Seria A but also in the champions league, they're topping their table also. The Parthenopeans have good chemistry interms of team work and Luciano Spalleti give recording good results for the team. I don't see anything wrong with the team currently because they can play any big club in the champions league like thrashing Liverpool and Ajax, is a clear fact that they are ready to face anything coming to face them.
If you look at their current condition obviously this will be very good but telling them to be champions in a match that has only been running for 9 weeks is obviously still too soon in my opinion especially we know that Serie A is one of the most difficult leagues to predict.
and specifically for Napoli they have been like this for the last few seasons at the start of the season so indeed I wouldn't be too surprised by them at the start of the season and wouldn't be surprised if their form dropped towards the end.