It's a little more complicated than that. Sumlin's not really the mastermind at all. He likes to run the air raid, but the offense is Spav's not his. I think Spav has been a massive failure, and Sumlin's attempts to implement a power running game have been extremely counter productive. Even without Manziel, our offense under Kliff is extremely different than under Spav. Johnny Manziel maybe ran one or two zone reads his entire career. We don't run true slants or drags without the receivers running five yards vertically first. We don't utilize the middle of the field. We never do any stick routes. We have the slowest developing offense ever, and that's not a characteristic of Sumlin, that's on this Spav/Christensen hybrid. We did all that stuff in 2012. On top of that, our lineman miss so many blocks because they are focused on the second level. It's been about the worst implementation of a wide open offense I've ever seen. It's terrible. I think Sumlin went with the impossible idea of mixing drive blocking power running zone read with a slow running back and air raid, and he left an incompetent moron in charge of implementation. So the blame is squarely on him, but it's not about his "style" being figured out because no one has tried this "style" until this season because it's so obviously counterproductive no one would want to.