Well, if you're trying to play keep away by killing the clock you usually run a lot more. McVay likes to pass on most downs. I think that it really takes him that long to get the next play in and for the QB to relay it to the team and for the nine hundred presnap movements. And those drive me nuts too. If you slowly move the TE to the other side and the scenes can just jog along what do you gain? Of course having someone with speed going in motion leading into the snap does have a positive effect.
