Hahaha, Briggs.Xerri will never be a 1st ruck at AFL level for anyone other than a side desperate for one.
He just doesn't have it.
He's still developing, but he's not a great mark for a ruckman, he doesn't have particularly good ruck craft despite OK hitout numbers, he's lumbering and more than a bit unco.
Throw whatever we can at Briggs.
I'd be asking the question of Grundy's management also.
Xerri rely's on aggression and size at VFL level. The problem is, he's can't bully rucks at AFL level, because doesn't have a physical advantage, he's mostly at a physical disadvantage.