Napoli have a hard task to complete but with more than 10 matches till the season ending, 8 points less than Bologna will not be impossible to equalize. Napoli have been showing their recovery and return to good form recent matches. Their main challenge from now is to maintain their own good performances, then their chance to catch top four will become bigger match by match. Bologna and Roma will surely lose points so the main task for Napoli is to play well enough to take advantage of dropped points from competitors.
If the target is a ticket to the Champions League next season, to be honest, that is quite difficult because not only do they have to catch up with the eight points behind Bologna but they also have to see Bologna perform poorly in the remaining 11 matches.
Bologna is a team that gets a lot of points in home matches while away matches are dominated by draws and with 11 matches still to be played, 4 of them are home matches and the rest are away matches and they have to get 29 points so as not to be overtaken by Roma and other teams below them including Napoli so Napoli's target for the champions league is very difficult, and it would be easier for Napoli to achieve a position in the European league or conference league, and in my opinion, that is much better and will allow them to do more because the competition is not as tight as the champions league and even the opportunity to become the champion is wide open for Napoli, especially if they experience very good development next season.