I think Byerly did a good job of reading the "VT blitz" here and getting out of the way. The play would have had positive yardage if not for IJ "knowing" the play and coming up for the tackle.
How did he "know" the play is the question. If this is play action, then Smelter runs by him and Timmy hits him for a walk-in touchdown. I actually LOVE seeing this aggressiveness from IJ if it's for sound reasons. If he "knew" the play because he was able to read Run Block by the OL rather than Pass block, then that's a sound reason to come up that hard in run support, confident that he's diagnosed the play correctly. That is what makes a player play fast much more than a 40-time. So, if that's the case, HECK yes, give me some more of that Isaiah Johnson. I hope he plays like that during the season, and is able to diagnose other teams' plays like that.
Next question is how do we keep this from happening to our offense? To me this has been one of our biggest problems. Other teams are getting MUCH better at diagnosing our plays. This wouldn't be as detrimental on a straight TO because we've still got blocking angles that should give us a lot of advantages and numbers. We can run straight at them and get yards. But, with a counter like this, it's slower to develop and if defenders diagnose it early they can get to the point quicker than the blocker can get the angle on them. This is why it is SO IMPERATIVE that our blocking start out looking the same for a play like this or a play-action pass off of this play. A few people are clamoring for different pass-blocking scheme/fundamentals, but that would take away from the biggest advantage our offense has in the passing game - do that and there's no more open WR's. Then, it would require a QB who can thread a needle, which is not what QB's in our offense are going to be about. For obvious passing situations, I can understand the argument, but might disagree with what constitutes "obvious passing situations".
It's really up to Coach Johnson to deal with plays like this, and the guys he relies on upstairs to recognition. And, he does this as well as anyone. He's going to call the same play later, but with play action, and it'll give us a chance to hit a big one. We've got to be able to make the defense pay in our play-action game. This is what CPJ harps on when asked about the passing game. He always says, we don't necessarily need more yardage, we just need better efficiency. We're ok at it, but if we could get better, we'd have a much better chance to beat any team we play. There are so many opportunities in the passing game every game that we don't take advantage of, either because a QB doesn't see the open man, the OL doesn't give him time, QB makes a bad throw (this has gotten better over the years), or the WR drops it.
This is where it also helps to have a player with some special ability at QB, either the ability to break that tackle or at least push forward for a few yards in the 1-on-1 situation with a tackler ... OR, a guy with special elusiveness to make that guy miss. Maybe Timmy and/or Justin can make these plays better than last year.