In my opinion, sacking Napoli's coach at the moment would hurt Napoli a lot. Napoli should not have made such a decision at the end of the season. It takes some time for a new coach to take control of the team. In the mean time, Napoli's title race this season could go from bad to worse. Even though Napoli are not in a good position in the serie A points table, I think Napoli can slowly go further down due to the sacking of the coach this time. Now it remains to be seen how far Napoli can go with the new coach.
Decisions like these making things more terrible for the defending champions which are currently at 9th spot and their Champions League dream is also going to end with their performance was not good in first leg match, and now they are going to Barcelona where most chance they will be face exit and Serie A is having good fight for the top six spots Napoli is surely struggling to keep themselves at the top half of the league table because their performance is going down day by day even former coach was not doing good but with just few matches remaining he deserves some more time in this difficult situation.
Now on Sunday they are going to face Cagliari which is currently in relegation zone and have just one win in last ten games, hopefully this will give Napoli win and some confidence for the remaining season as they will try to keep themselves in top ten.