Are you saying there is a correlation between having a Polynesian background And laziness in defence in Rugby League?
If so, what is the optimal amount of Polynesian players to have in the team to avoid not doing enough in D?
It's more the giant body shapes of the Islanders and their ability to keep tackling, moving, tackling. Smaller guys like Api do a shiitload of D.
The roosters and Melb have the mix about right.