Napoli are entering a new era with Rudi Garcia next season. After a wonderful season with Spalletti I wasn't expecting him to part ways with Napoli this quickly. But lucky Napoli that Rudi Garcia and Spalletti are using the same system mostly. Rudi Garcia also uses a 4-3-3 Attacking formation style and this was his system with Roma in the past when he managed them as well. Rudi Garcia has come here from Al-Nassr by the way. He stayed for only one season there and now after 7 years he is back in Italy.
I don't expect to see big changes happening for Napoli due to the reason I mentioned. They are even likely to keep their most important players in the squad for now as well. This should be enough to keep them in the title race in the Serie A again.
My research indicates that Osimhen is the team's most clever player when it comes to goal scoring, thus if Napoli hadn't sold him, they would have had a very good team for the upcoming season. There are many teammates that can help the squad score goals, but none of them are as smart as Osimhen. Additionally, changing coaches might benefit the club, but if the group is weak, nobody will be able to understand the coach's formation, and the game will appear strange.
The reason I'm saying this is because many teams are vying for Osimhen with large sums of money, which will force Napoli to sell Osimhen. If they sell him inadvertently, however, it will affect the team. Therefore, my advice is that Napoli should not sell Osimhen and whenever they do want to, they should acquire a good striker player first.
Interesting and it seems, Rudi Garcia is also accustomed or has experience in becoming a head coach at a club that plays in Serie A. Thus, then at least Rudi Garcia might be quick to build a good squad and of course, suitable to be applied in the Serie A style of play. But even so, i personally will not quickly have high hopes for Rudi Garcia at Napoli next season, because i think to build a strong and consistent team to be able to compete in the top four will certainly not be easy. But yes, if Napoli can keep Victor Osimhen maybe it can be a guarantee for Napoli to have a good performance. But because the transfer window is still long closed then who knows, maybe at the end of the transfer window there will be a club that will really bring Victor Osimhen, because everything is not certain.