I personally feel there's no need to spend on the fullback positions. Laird could be given a chance and who knows, with the coaching abilities of Ten Hag, we could even get Williams or Alvaro Fernandez to step up. That's enough bodies, even if we're getting rid of one of our current options.
I think there are much more pressing issues in the squad like the midfield and strikers. I don't think it's realistic to expect us to sign 6-7 players in all the different positions, especially when Ten Hag is reputed to be a good coach.