Napoli are doing very well at the moment and they don't feel like Ronaldo. Moreover, it is no longer the Ronaldo who used to be in top form, the years have also started to count for him. Juventus could really use heem, maybe he should talk to the Juventus board again. They are in a very deep valley and a player like Ronaldo can get them out in principle. Same did Zlatan with AC Milan. That was very succesfull.
Yes, Napoli are in a good position to embrace this Italian league title because their performance so far showed that this season will favour them. I don't think, Napoli need player like cristiano Ronaldo in their team before they can win this title, because there are many strikers in Napoli who play more than cristiano Ronaldo in this season, which Napoli coach will not accept cristiano Ronaldo with his age into the team. Juventus coach will be very happy to welcome him back to the team because he has a good record with Juventus that will make their coach to consider him to join the team.