We don't have much college data pre-dating 2003, but Sports Illustrated's Andy Gray posted an image from the SI vault that would make any stat geek drool. It is a snapshot of head coach Gene Stallings' 1992 Alabama "Defensive Quality Control" chart (click here for larger view), documenting dozens of defensive standards charted throughout the Crimson Tide's undefeated championship season. Some of the metrics are self-explanatory, others appear to match some of the data we're charting now, and others are a bit of a mystery. Also an intriguing mystery: what appears on this chart beneath 'Pistol Force' and what do the missing 'Q ~ Quality' metrics entail?