Lee Enfield
Jimmy Flynn (14)
They aren't hidden in defence, in Foley's case it's to position him for a counter attack/kick.
Regardless, no we can't select 3 suspect defenders in the front line. If Beale is 12 then Kuridrani needs to be 13. If Kerevi is 13 then Beale needs to be 15. I think the latter will happen regardless of who is 13.
Foley is hidden, pure and simple. He certainly isnt there for his counter attack or kicking, especially considering his kicking is abysmal.