The damage done
The quarterback is not always as valuable as the man rushing after him
I LOVE MESSING AROUND with all-encompassing uberstatistics as much as any geek, but you often learn more simply by counting stuff nobody has counted before. Take the sack. As NFL passing yards keep rising and offensive schemes keep expanding, sacks are becoming more valuable. The problem is that teams and fans don't know how valuable. Traditional stats can't answer that. But by consulting the play-by-play database kept by ESPN Stats & Info and counting the effects of sacks -- where they happen, when and how they influence games -- we can create a whole new metric (more on that in a minute) and understand the game in a different light. For instance,
If you want to read more about Peter Keating's new metric, you must be an ESPN Insider.