I read this quote from Clay Matthews about defending the Read Option and found it interesting. I don't know the X's & O's, but if I were a defensive player I'd be hitting the quarterback every time he made that fake. Eventually he either will be hesitant to run that play or he'll be on the sidelines because he's taken too many hits. Someone with more knowledge explain why defenses don't do that. Click here for a link to the full story.
"One of the things that the referees have told us is that when these quarterbacks carry out the fakes, they lose their right as a quarterback, a pocket-passing quarterback, the protection of a quarterback," Matthews said in the interview. "So with that, you do have to take your shots on the quarterback, and obviously they're too important to their offense.
"If that means they pull them out of that type of offense and make them run a traditional, drop-back, pocket-style offense, I think that's exactly what we're going for. So you want to put hits as early and often on the quarterback and make them uncomfortable." (Emphasis mine)
"One of the things that the referees have told us is that when these quarterbacks carry out the fakes, they lose their right as a quarterback, a pocket-passing quarterback, the protection of a quarterback," Matthews said in the interview. "So with that, you do have to take your shots on the quarterback, and obviously they're too important to their offense.
"If that means they pull them out of that type of offense and make them run a traditional, drop-back, pocket-style offense, I think that's exactly what we're going for. So you want to put hits as early and often on the quarterback and make them uncomfortable." (Emphasis mine)