Napoli was my favorite way before this standings table happen. After Ronaldo gone I expect Juventus to fall down, that happened. Inter dominated last season but they couldn't show similar performance this year. Milan is going good like last season.
Napoli lost their first point but this is understandable. It was kinda expected after Roma's heavy loss in Europe, Mourinho played more defensive and Napoli couldn't find a goal against them. This was one of the hardest away games in Serie A so one point may be good in long run. As long as Napoli win their home games and beat their weaker opponents in away games there would be no problem. I expect another three matches win series from them, fixture is pretty good. They should win all games until Inter match.
They have the confidence,the winning spirit and the team work to thrash any team that comes their way,but this ponts they loose might put a loss of confidence in them,but hoping it won't affect their moral,entering into the next game.
We are seeing Milan to be the only team to give them a tough time,may be Seria A is not like English premier league where you see small teams flog the big teams.
So Napoli can just continue their fine form until they meet Milan that will give them a serious test.
Basically, before Napoli against Inter it seemed that Napoli's position was very safe, even though at that time Napoli had to play in the Europa League but the opponent was only Legia which I think it's not a big problem for Napoli. Unlike Inter, at least Inter got a tougher opponent before against Napoli. Yes, Inter have to play against Milan first before against Napoli, the obstacle for Inter is definitely tougher here and with that factor too I'm sure Napoli will be able to take advantage of the situation well.