Nico Williams is from Spain so what do you expect, that Barcelona should leave their own soil player and go for an Africa player, NO I don't think so. However, Nico Williams collaboration with Yamal will be great in the attack because I have seen both players in action when they were playing alongside with each other. Joan Laporta knows what he wants.
One of the reasons for adding Nico w illiams to the squad is Yamal. We know that Yamal and nicowilliams are friends. And we have seen the performance of this pair in the Spain squad. And this is probably why Laporta is interested in adding Nico Williams to the squad.
Also Barcelona will have to start trying to create a replacement for Lewandowski from now on. Barcelona's contract with Lewa is about to expire next season. Also , Lewa is almost 37 years old now. In the future, we will see Nico- Yamal- Rafinha in Barcelona's attack.