That's fair enough.
The names are mostly inconsequential. It's the idea of creating a middle in defence that teams don't dominate so easily. We don't seem physically capable of stopping the opposition without throwing 3-4 bodies into the tackle. We don't seem physically or mentally able to impose our will defensively. If the club can find a handful of guys that can do that, not named Hetherington or Horsburgh- sign me up.
But names like Royce Hunt etc don't fit the bill. Unable to play decent minutes, never been a good defender with regularity. I'd be ok with Siafiti. Oregon Kaufusi on a deal half of what Utoikamanu was offered. Sure.
I settle on Hetherington, Horsburgh etc simply because they have proven to be that intimidating force in defence already.