To me it should go like this (hypothetical right-back scenario):
MB: Hey, we've been scouting some right-backs under a certain profile for our system, here are 4 we are interested in. What are your thoughts on them?
Manger: I like him and him, not so much them two.
MB: Okay we'll dig deeper and approach the clubs/players.
How it goes at Everton:
MB: Hey, we've been scouting some right-backs under a certain profile for our system, here are 4 we are interested in. What are your thoughts on them?
Manger: They aren't the profile I want in my team. I like these two.
MB: Okay, they don't fit our desired system but you want them so I'll go ask.
In the event of the second scenario you've either hired the wrong manager or not hired a strong enough DoF to say no.