It is very appropriate for Barcelona to bring Nico William into their squad.
And apart from wanting to bring in Nico, there are rumors that Laporta also wants Dani Olmo. I also slightly think that this is impossible.
Dani Olmo played well for Spain in the previous Euro in 2021 but he did not move to a bigger club after that. In Euro 2024, Olmo lost his position as a main player in Euro 2020 to a substitution but the serious injury of Pedri gave Olmo a great chance. He did not waste it and became a key player to help Spain win the Euro 2024 trophy.
Olmo will receive more offers after this successful Euro 2024, same as Nico will have. Wanting these rising star players is like too much for Barcelona with very poor finance recent years. They can have both Nico and Olmo by expensive cost but it does not guarantee they will win La Liga or Champions League or both titles. This mean they are going to make big bets by spending very big budget that is even not in their own pocket, to hope that these new star players can help them winning trophies in a new season.
Chances for Barcelona are small because many big clubs have their eyes on these players and have better financial capacity than Barcelona too.
Barcelona's chance to recruit Olmo is big enough. People doubted Barcelona's ability to recruit Nico from Bilbao. But, they forgot that Barcelona has a key to attract them to join: Yamal. If I were Olmo, I would consider Barcelona's offer. Barcelona is a big club. They are also consistently playing in the UCL and have a great history in European football.
But, as you said above, everyone doubts Barcelona. The reason is their terrible finances. Although many clubs are interested in Olmo. But, I don't mind other big clubs who approach Olmo from Leipzig. Barcelona is still a winner in a competition to get Olmo, and it is because they have Yamal and Nico. They can lure Olmo to join.
If Barcelona can secure a deal with Nike, then it's easy for them to recruit Olmo from Leipzig. And again, Olmo has been Flick's main target too. It's gonna be easy to get flick's approval to get him. Let's wait till barcelona finish with its financial struggle, then we'll see what's gonna be Barcelona's decision.