Haven't read through all the numbers but I'm a little surprised we're that high in recruiting. Anyways, thought it was interesting.
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LinkWe compared how teams recruited to where they ended up in computer polls at the end of each of the last five seasons. To measure on-field success, we used Kenneth Massey's ranking composite. Massey is a statistician whose work contributed to the BCS computer rankings; his composite index averages dozens of rankings including the six computers used in the BCS, the AP Poll, and the USA Today Coaches Poll.
Rivals rankings were used to measure recruiting. For each season, we used an average of the five previous recruiting classes. Even though upperclassmen generally contribute more than underclassmen, we avoided weighted averages because upperclassmen also transfer schools, declare for the NFL draft early, and have career-ending injuries.
To give an example of how we rated teams, 2009 teams are made up of recruiting classes from 2005-09. In 2009, USC had a 3.2 average, since the five recruiting classes that made up that team were, on average, ranked 3.2.
We then averaged results from 2009-2013 and compared the metrics. Doing this tells you from 2009-2013, USC finished 22nd in Massey's poll on average with teams that had recruiting classes ranked 4.2 on average, meaning they "underperformed" their recruiting rankings by 17.8 spots on average. Perhaps consequently, Lane Kiffin got fired.
The further teams are from the chart's dotted red line, the more discrepancy there is between their recruiting and on-field rankings. Teams in the blue region did better on the field while teams in the red region were better at recruiting.
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