I don't know why Luciano Spalletti will just turn his back on Napoli when the star is shining brighter, I guess the guy did not believe in the second time of a good performance like this season, so, he stylishly exited. As for Rudi Garcia, I don't know much about the guy but I believe him as an old player and coach that he would be able to deliver in his own little way. I will not cast much doubt in a good performance of Napoli in the next season, but that is only if they do not eventually sell Victor Osimhen.
Maybe he just wants to take a break? Isn't that normal amongst managers too. We have seen lot of managers taking a break and its understandable with the way they have managed such top teams competing in lot of competitions so lot of pressure is there when it comes to managing. I don't think its "turning back" on Napoli as Spalletti left Napoli and just simply taking a break. However, it would have been different if he left and went on to manage a rival of Napoli in Serie A but that's not the case here.
yes it is very reasonable.
because every football coach will surely feel tired when pressured by the responsibility that must be carried out to bring the board team to be stronger and finally Spalletti may feel tired after the hard work during last season brought Napoli to the top of the standings.
with Osimhen I don't think he will really leave Napoli unless the new coach forces him to leave and that is absolutely impossible for me.
next season maybe Napoli will still be in an unstable performance.