In this case we have two years of data .
In this case we are estimating his ability based on his performance against slightly above average opponents in 2007 - 08 ( ~ 52 % ) and below average opponents in 2008 - 09 ( ~ 41 % ) .
In this case we have two years of data and are estimating his ability based on his performance against slightly above average opponents in 2007 - 08 ( ~ 52 % ) and below average opponents in 2008 - 09 ( ~ 41 % ) .