The fact that Napoli currently have a very good and experienced coach isn't something i believe any one would want to doubt at this time but the fact that they will still need some time to be bale to get ahead and get their feet firm again on the ground is something that cannot be taken out of the way just like that. even if currently lukaku isnt doin bad at Napoli, i still don't regard him as a better replacement for osimhen because what osimhen achieved at Napoli is something lukaku is yet to achieve at Napoli yet so until the end of the season and his cumulative performance is seen i won't agree.
Currently, Napoli has not recovered 100%, but if Conte can continue to make Napoli maintain its current performance and continue to develop it, I am sure Napoli's performance can be better than now. Because it is natural that currently Napoli are still not able to perform like when Napoli were able to become Serie A champions. This is due to the adaptation factor which is of course a process that should not be missed. The reason is that with the arrival of Lukaku, and also several other players, all of them still need perfect adaptation to be able to produce their best performance. Likewise with Conte, as a coach he also definitely needs adaptation, therefore it is natural that Napoli's current performance has not been able to surpass Napoli's performance when coached by Spalleti. Because in essence, Napoli players and coaches need perfect adaptation to be able to produce their best performance.
And currently, in my opinion, Conte is halfway to bringing Napoli to its best performance. So we'll see how things develop, whether Napoli will continue to experience improved performance or vice versa. Because I also somewhat agree with your opinion that Napoli cannot currently be said to be showing their best performance. Maybe assessing Napoli's performance at the end of the season could be a very accurate assessment. And I also agree with you, regarding Osimhen. The reason is that up to now, Osimhen can be said to still be Napoli's best striker, because Osimhen was able to bring Napoli to become Serie A champions. Meanwhile, Lukaku, he is still a new player at Napoli, so it is not yet known whether he will be able to make achievements at Napoli like Osimhen or not. So yes, we'll see what Lukaku's fate will be like at Napoli.