So the injuries are irrelevant then? Even if the key injuries hadn't started before Round 1 (which they did), it doesn't take a genius to work out that they are partly responsible for our plight. We started the season with Gutho, Williams, Vave and Terepo out (as well as two other blokes who have since played FG). And since then Hayne, Norman, French, Mannah, Williams, Vave, Brown et al. have been out for extended periods. IF you think that's irrelevant, you are having a laugh my friend.
I reckon it's more the quality of our forwards than the size (though losing our fatter forwards didn't help). The Sharks seem to do ok with a pack that is probably actually smaller than ours.