Can money buy everything for you? Many people people will answer possitively. Their answer is right in a big context, but is not fully true. There are many things that can't be held only with available money. Club football transfer is a big place to utilise it. You may have enough money, enough resource, but you can't buy all players you want to. This transfer window is a proper example of that.
Just months ago, it seemed imposssible to sign any player to FC Barcelona. Because they have their fund of -140 million euro to expense in transfer market. It means that they had to earn 144 million to neutralise that negative fund and then had to earn more to sign players. So everyone thought that Barcelona have to play the upcoming season with their players already have in their hand. But now the situation is different. Barca is now one of the side who have signed most players.
They have signed players like Lewandoski, Raphinha, Kessie, Kounde, Christensen etc. They resign Dembele. They were not able to sign all of these players only by their money. If money was the only factor, Most of the above mentioned players would go to Chelsea, the English giant. Chelsea offers Lewandoski, Dembele very lucrative wages. They were on the way to announce Raphinhaas their new signing. They wanted to resign Christensen with more wage. At last Barca hijacked Kounde from Chelsea. But all of them then were signed by Barcelona. Behind these transfer the potent will of these players to play for Barca plays more vital role than the money of Chelsea. Otherwise Barca can't hold them.
When we talk about transfer, traditional clubs like Barcelona, Madrid, Bayern get some extra facilities. Though it is for the players willing to play for the club. Sometimes they want to go these clubs even if others clubs offer him more money. And now Barca is getting same advantages.
Glad barca could get all these players on their list this season. They really need to get back on their feet. And as you saif, money cannot buy everything. Players choice and the kind of contract sogned with their club matters in their transfer.