I've wondered that myself. I'd love to see the 'veer' offense that Tennesee used years ago adopted in the NFL by some team.
But the fact is that the 'option' offense is too easily defended at the pro level not to mention the beating it puts on a QB, because he has to read the defensive tackle while the ball is in the first running back's 'pocket'. He has to be willing (and able) to take the hit if he hands the ball of for the dive. Also, linebackers are very fast and can read a play instantly. The only thing that would add enough of a variable into the equation would be someone like Michael Bishop at the outside or trailing half back position. Then you don't know if he's going to throw the ball and that is just enough to freeze the linebackers from coming up into the flat and attacking the ball. But then you'd need a QB that can run and Bledsoe wasn't it, so there goes that argument.
Heath Shuler out of Tennessee was another pro q'back whose style just didn't fit the big league, but who was an awesome q'back.