Hey, thanks for the kinds words. Excellent question on Yards Per Play, why my focus was more on Points Per Play when I focused more on Yards Per Play in the DC thread etc. Please allow me to share my reasoning a little further:
1. Honestly, I try to do a lot of research into the things I write about and Points Per Play is becoming a better metric for evaluating offenses. It measures explosiveness and ability to actually score TD's rather than an ability to move the ball between the 20's. For instance, last year, Miami had a pretty good Yards Per Play metric. They also were pretty poor in Points Per Play. I spent time on the topic and calculated the data:
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So why is Yards Per Play a better metric for defense than offense? My research indicates it ties heavily with 3rd downs. The play caller (OC) has a greater impact on keeping drives alive on that down than the DC does in preventing 1st downs. Yards Per Play is a pretty good proxy for Points Per Play, but the data suggests the way I took the study as the more prevalent factor.
*Note* These figures are in relation to their peers, so no FCS games, P5 vs. only other P5 teams and G5 teams vs. only other G5 teams etc.
2. You indicated that the highest correlation is probably with Yards Per Play, but that is not correct in my research. I didn't run a linear regression, so these figures are not correlation marks, but rather percentage of winning games.
- Teams who won the Points Per Play metric win the game 86% of the time.
- Teams who won the Success Rate metric win the game 83% of the time.
- Teams who won the Turnover battle win the game 73% of the time.
- Teams who won the Field Position battle win the game 72% of the time.
- Teams who won the Yards Per Play metric win the game 68% of the time.
*Note* In the interest of intellectual honesty I must point out that it's fairly intuitive that Points Per Play would most highly correlate with winning games because it is the only metric that uses the only item that judges wins/losses (Points).
3. The reason I included a film review with the data is partly to help understand the amount of times the OC put players in position to succeed and they did not execute a play that should be fairly easy for a DI player. Hopefully I presented that information in a fair and unbiased way.
You bring good points- and I did try to point out that Applewhite did not fare especially great in Yards Per Play- but hopefully this sheds a little more light into why I took the OC the direction I did and the research put in. When you're writing an article designed for a specific audience you are looking to present information in an easily digestible way without going too heavily into the "why." Imagine the length of the post if I were to add this much detail to the methodology before I even got into the review. I get a lot of feedback about "Too Long;Didn't Read" already as it is.
PS- Forgot a question- The reason 30 points per game is important is the percentage of a team winning while scoring 30 points a game goes up exponentially, it's a nice round number, and it's the number that most coaches state they want to average. That part wasn't mean to be super scientific and I didn't point that out, so that is my bad.