We're averaging 14 points per game this year. Even last year we averaged over 20. No surprise we're consistently losing - 14 points is simply not enough to win most games.
I agree Myler is the single biggest loss to the attack. He brought width to the game and gave the halfbacks someone to work with. Agar mentioned how they'd trained with him all pre-season, and given how we play without him it seems likely he would have been first choice ahead of Walker.
The cause is bigger than one player though - lack of power up front means we can't suck in defenders, horrible dummy half passing kills momentum, we lack someone to link with the threequarters, and then centres who have no power or speed or clue how to set up a winger means even if we do go wide we don't really threaten. All of that could be offset a lot if we played to a structure and everyone knew their role, but the whole thing just seems to have collapsed in a heap. We're showing more resolve in defence but unless we can score points we'll continue to lose far more than we win.