What seems like a joke is not in the desire to sign Lewandowski in my opinion, but in the negotiation process with Manchester United who want Frenkie De Jong who has not got a deal to date. I think this is the reason Barcelona have not agreed with Manchester United's offer and asked for a higher price to get De Jong.
Barcelona must release a player who has an important role in the team to be able to get funds and the sale of Frenkie De Jong could be a solution to get Lewandowski.
Does it worth it though? Would you prefer to have De Jong who is a young star player, or would you prefer to have Lewandowski who is arguably better of course but at the same time he is very old. I mean if we are talking about it financially then I would keep De Jong instead because he could worth a lot more in the future.
Although if they think that it could turn out to be like Coutinho deal then they could get rid of him now that he still has a value, he has dropped in value a lot over the course of the season. In the end, I still think they should focus on the youngsters and what they have and not go for expensive transfers, they do not need to spend money like that.