I'm not sure how to break this to you, but Boykin would be 100x worse under center. He's too short to see over the line unless he's in shotgun. An under-center offense asks a QB to be much more precise with his footwork and timing, neither of which are Boykin's strengths. They also demand that the receivers run crisp routes and be on the same page with their QB, which hasn't happened with either Boykin or Pachall. If you'll notice, on the 2nd INT Boykin motioned to Cam White to break off his route before the snap...only to have White run a 'Go' and give up an easy Pick-6.
Not to mention that Boykin has never taken a snap in anything resembling the offense you are talking about. By the way you're describing it though, it seems like it'd only take him a practice or two to get it...since it's so simple and all.
And again, show me the maulers up front on this roster that it takes to be Stanford or Alabama or LSU. We don't have them. And as far as changing offenses in the middle of a season...LOL. We might not score another point if that happened. And that doesn't mention what a sign of panic it'd be from the coaches (neither of the coordinators have recent experience in a 'pro set' offense). If the I doesn't work, maybe we should try the flexbone the week after. And the West Coast the week after that. I mean, changing offenses is simple right?