The reason we lack shape in any given play is because most of our attack is scripted along the lines of 4 hit ups/standard block play/kick strategy. It's a symptom of McGregor's high completion/low risk power game which worked at different times in 2015, 2017 and last year. When you have a pack as good as ours, it can be effective, but its not sustainable and good teams work out our predictable tactics, thus causing the late season fade outs when we don't adjust.
McInnes is actually pretty quick, but his dummy half snipes are ineffective as he lacks support and can't link with his play makers (unlike Smith, Hodgson and Cook). We're so busy preparing for the next play, we don't actually finish the current play so Cam finds himself on his own with no support.
Case in point, one of the Rabbits tries last week, Cook dart from dummy half, finds Reynolds who kicks for Walker to score. Reynolds and Walker knew when Cook was going to run and made sure they were in the right place to support.
That's Bennett coaching right there as compared to Mary.