The way I see it is that Silva will tell Brands he needs a player for a certain position , let’s say striker
Silva will tell tell him what he wants most in a striker ,pace , holds the ball up , tall , good in the air , makes good runs into the channels and put those attributes in order of importance
Then Brands will give him a list of suitable players in the budget and they decide who to go for
Brands may at times tell Silva , I’ve found a gem and I’m signing him but on the whole I think this could be younger payers
Silva May at times day I want a certain player eg Ricarlison and Brands will run the rule over him , see if he fits the profile of player who will suit the club ( not just the manager ) going forward and either agree or disagree