the problem is offense can push players, defense can't.
that creates an unfair advantage. I think going low is the key, as low as kneeling in the middle and just going below center and then players behind them just standing up the center. I don't think a LB can do that, so probably be two deep at DT. first group get low. the group behind pushing center back. perhaps a saftey jumping over the line and knocking down one of the players pushing QB. if they have to get two yards, you have a chance. if they have to get a yard or less, its too much bang bang play for it to work.