Not only does the pulling guard do an amazing job, but so does the play side guard who blocks the MLB out of the play. If he doesn't do that, the play goes for 5 yards instead of a td.
Here's the play I was referencing, @GTYellowJacket12 .
Instead of a fake dive to the "triple option" side, Nesbitt actually gives and then carries out a fake counter option away from the fake triple.
The guard still pulls, but instead of "logging" the defensive end (getting outside and blocking him down, opening the perimeter up), the guard lead blocks and kicks that guy out, opening up a lane for Dwyer up the gut.
The safeties and linebackers pursue outside, thinking they've diagnosed a counter.
On a side note, I like what Oregon does with "false flag" pulling guards - guards pulling away from the playside to break keys. I'm not sure how translatable that is to under center, though.
The OL really have a thanksless job. They get waaaaay too much blame when plays fail and never enough credit when plays succeed. 95% of football fans only see JD and think that's why the play worked. I bet Laskey and/or Sims scores on that exact same play if you sub him in for JD.