It all depends on how the new Napoli coach will build the team's game, but in any case it will take some time and loss of points and this may be the reason when these points may not be enough in the fight for the Scudetto or even in the fight for a place in the Champions League. And yes, the loss of the head coach and rumors about the departure of players also do not make Napoli a favorite next season. So far, all the significant news and rumors about the team's people are on the way out, but there is no news about significant people in the team to enter.
So far, all of the important players will be staying even longer in napoli. People shall not feel worry about that caused by napoli is trying so hard to keep its best players to play even longer in the club but i can't deny the fact if the last season's squad is not so strong to compete in UCL.
There must be a lot of improvements to happen with the club. Since napoli got a new coach and i think that he shall be doing something better to increase capability of napoli competing in UCL next season.
So many clubs will be making huge improvements next season. Only min jae that's gonna leave from napoli while the rests are still staying even longer in the club.