I know Napoli is not die yet but it will be difficult for them to lift this trophy again in this season, which you know that there are many strong teams that has double cross them to use huge amount of points to gap them in the table. As it stand in this season, I don't think the coach can do something that will make the team to showcase what they have never showcase before because, some of their potential strikers will be leaving the team soon because their contract will expire soon and they don't want to continue with the team again.
Now Napoli is in the top eight of the standings which is quite far from being in the top flight, so Napoli may only be able to try to be in the top four of the standings until the end of the season if they are still able to win more matches and hope that their other rivals can lose. Because Roma, Atalanta, Bologna and Fiorentina have made quite good progress this season, Napoli continues to experience decline in its position so far.
I believe Napoli will improve next season because, by then their coach will have some new players that will make some improvement that will give their fans hope that with time their coach will get it right to help them win some trophy.
This season, it is no longer easy for Napoli to get another trophy like last season, but that doesn't mean Napoli can't rise to a better position, such as the top four or the UCL zone. Because usually when a team is no longer able to reach the top position, the team will try to secure itself in the top four so that it can re-enter the UCL competition next season.