The problem of stable money is clearly very important for the survival of a club. Retaining quality players must be supported with adequate funds. When Napoli already looks as if it will not have the funds to appoint several players for sale, it means very little for next season to be a worthy competitor. But I'm not sure that Napoli finances are so bad. It's just that the decision to sell players will have a bad impact.
We still haven't heard that Napoli is experiencing a financial crisis, it's just that maybe Napoli's management doesn't want to issue a higher salary that has been set, there are also other rumors about Spalletti raising this salary, they still don't know, but there is only news that he wants to rest, maybe there is a factor there are also others who can make Spalletti leave when Napoli are in their heyday.
Vitcor Osimhen is now being chased a lot and is being offered a higher salary than Napoli, with a market price that is quite high above 100 million euros, if Osimhen looks at it in terms of salary then he might look at other clubs and choose to move rather than at Napoli let alone be left by Spalletti later.