I think a player like Osimhen needs to play in a better team. Can you become the best player in the world by playing for Napoli? This is almost impossible.
I think a player at the age where he needs to show his highest performance should be in a team like Arsenal or Bayern. It has a value of over 100 million euros, but they are not using its potential right now. I think there is no need for such a player for a team that cannot even be among the top 3 teams in the Italian league
Yes, I also agree that Osimhen's good performance will be a waste if he stays at Napoli for too long. Because he needs to try to play at a different level at a different club or in a different competition such as in the EPL or in Laliga. Actually, quite a lot of people have wanted Osimhen since last season. It's just that Napoli set a price that was too high which made all interested clubs prefer to withdraw slowly. Napoli without Spalletti is very different. But Napoli without Osimhen would also be worse. So I also understand why the club always wants to keep him.
We are talking about a value of 100 million euros. There is no point in keeping such a player in the squad when Napoli has the opportunity to earn such money. With this money, they can provide a great resource for the development of infrastructure football. They can transfer new players. They cannot achieve success in such a league with only 1 star player, they also take away the player's future.
I think if an offer comes from a good club, a transfer should be made
Actually, there are several teams who are interested in Oshimen, only they are hampered by the transfer fee which is quite expensive, but this is comparable to Oshimen's current performance. A team interested in Oshimen would be very good because at Napoli if he doesn't find a suitable coach his performance won't improve soon.