In my opinion, Napoli current collapse is of course due to the loss of a great coach like Spalletti who is indeed able to concoct a pretty good strategy and tactics of the game in winning the Scudetto, besides that the many changes of coaches in Napoli this season of course make their squad unstable and have to end the season outside the current European competition, Conte arrival of course gives a little hope for Napoli to rise again, But with the current performance and Napoli squad, of course, it will take a lot of time for Conte to bring Napoli back as a Scudetto competitor.
the truth is that Napoli, as I said the last few times, won the Scudetto also thanks to luck and the demerit of the others like Inter who managed to lose a Scudetto so easily by making mistakes in matches, easier losing points along the way, certainly goodbye by Spalletti to Napoli it was a choice that put Napoli in crisis but it's not just that, it's enough to see that here players are ready to escape from the team. Conte's arrival will certainly give new air but without excellent players they won't go anywhere