Early in the game thread someone said "Yates is not the problem," which I think was true. He wasn't the problem, but I think it was clear that he did not quite have the tools to overcome OL and playcalling issues when going up against the more talented teams on our schedule. He has a great attitude and was a stabilizing force at an early season juncture where things could have gone off the rails. I feel very comfortable about him stepping in down the road if needed.
Sims just gives us another lethal threat in the backfield, and helps unlock everything else as a result. The more dynamic your QB is, the less perfect your playcalling needs to be. It feels like a cheat code, almost like adding an extra player on to the field.