Actually Rudi Garcia is indeed a good coach, it's just that the fans expect Napoli's performance to be the same as last season, of course that will be a heavy burden for Rudi Garcia and many people doubt that Rudi Garcia is able to maintain Napoli's slick performance, and also Rudi Garcia is a minimal coach. regarding achievements, I think while at Napoli he will experience very heavy pressure to be able to continue what Spalletti has given to the Napoli team.
almost all Napoli fans really want Napoli to be the same as last season but this pressure seems selfish because Rudi Garcia does not have experience like Spalletti and this can affect Napoli's performance in the future. at least Rudi Garcia must try to give the best to Napoli in the coming season even though many are doubtful but hope is still there for Napoli.
TBH, I also doubt Rudi Garcia not because he has no experience but Napoli must remain the same as last season which dominated Serie A, now with this it is a very tough task for Rudi Garcia. it was not easy for Spalletti last season to make Napoli stronger and this will be felt by Rudi Garcia.
Considering they literally fired the manager who made them champions, it's obvious that Napoli management is not really right in the head. Thank god they got at least one championship out of this season, but between players leaving and also manager leaving, they are not going to be able to replace them with other stars and they are going to be much worse.
They also do have a bit of a worrying situation with the other teams, because if other teams gets better then it is not going to be possible for Napoli to win, but looking at them, it looks like other teams are not doing that great neither and that could be an issue for them and Napoli could take advantage of that. I am not saying that they will win it again, but while they are getting worse, if other teams do get worse as well, then they do have a chance.