I think he can help Napoli to achieve something this season, the club realise that and the player is willing to leave the club, especially there are offers from good clubs. And this is the reason why they are raising the price, because they can't refuse clubs because of the player's desire, because they have already discussed everything and Napoli have the last word. Overall I don't see their fault, they want to keep the player and that's their right
With all the indications from the preseason games and the first match of the season against Verona today that they eventually got beaten it is clear that they don’t want to keep him anymore. He has been left out of the squad to look for a new team which wouldn’t be the case if they don’t want to sell. Last season when they had the opportunity to sell him and they didn’t want to sell him they made it publicly clear and now I don’t think they want to keep him with the club statement and the interest in Lukaku, right now they have more problems at hand than just Osimhen. The reason why they haven’t actually reduce the price tag might be because there is still Time and probably when a club comes for negotiations they will agree on a certain amount with them.
I do agree that Napoli couldn't do the transfers they wanted, which is causing a little bit of issues because they got ready for them and didn't do them. Like how Lukaku is still not there, and they really want him, Conte said he wants Lukaku nearly 2 months ago and yet they still couldn't get him, and he said this because everyone knew that they would sell Osimhen, but they wanted way more than they should so they still haven't sold him neither.
There is still some time left, they still could do these, but I doubt that it will happen, at this point I think they realized that they have to keep Osimhen and not get Lukaku, and this is just two examples, there are many more stuff they failed too. I hope they recover from this loss quickly.