The trouble is we don't have any big-bodied runners to bring in. The small guys just get pushed off the ball or out of the way too easily. It doesn't matter how hard those small guys try.
Spot on Muscles. In any athletic collision sport you don't need to be a rocket science to understand bigger, stronger & faster is better.
There's also the problem of a lack of a mature core and leadership. The Eagles even when they tanked last year had many of their premiership core still on their list to rebuild around. This year Cox, Kerr, Glass and co. come back fully fit plus another year of experence in their younger players and up and away they've gone.
