Maybe I'm dense here, but I don't understand what you are getting at.
But to expand on my point, what I see of Murray is that he could be a more disciplined version of Vick in the NFL. I think he can be a better passer than Vick was in the NFL. And I know I've said they are a ridiculous comparison, but what I'm referring to is what Vick became vs. what Vick was coming out.
At Murray's best, he is going to require MORE defenders to focus on him. And I'm not talking about rushers, I'm talking about a spy that plays a shallow zone, spying on Murray. That means he will have one less pass defender to count for, and that spy probably won't effectively be able to stop him from running either.