Over at Football Study Hall, Bill Connelly uses something called line yards to measure how much push an offensive line gets against an opponent’s defense:
Adjusted Line Yards (ALY) “differentiate[s] between the contribution of the running back and the contribution of the offensive line.” ALY attempts to “separate the effect that the running back has on a particular play from the effect of the offensive line (and other offensive blockers) and the effect of the defense. … Yardage ends up falling into roughly the following combinations: Losses, 0-4 yards, 5-10 yards, and 11+ yards. In general, the offensive line is 20% more responsible for lost yardage than it is for yardage gained up to four yards, but 50% less responsible for yardage gained from 5-10 yards, and not responsible for yardage past that. Thus, the creation of Adjusted Line Yards.”
In a post about last week’s Michigan-Nebraska game, Bill put together something you might find of interest.
Worst single-game Line Yardage average in 2013:
1. Michigan (vs. Michigan State): -0.53
2. Oregon State (vs. SDSU): 0.11
3. Michigan (vs. Nebraska): 0.47
4. Miami (vs. Va. Tech): 0.57
5. North Texas (vs. Georgia): 0.58
That’s right. The poor ol’, maligned Dawg defense did the fifth-best job of controlling the line of scrimmage on running plays in a game this season. And before you can say “it was North Texas”, let me paraphrase Bill by noting that Georgia State got a better push against Alabama than North Texas got against Georgia. That ain’t nothin’.