Oops! was thumb typing in the subway between stops. Correct with the 34.6 (i used 6 instead of 7 as the denominator). But if we are dropping the outlier (for the you, the stat geek), let's also drop that 21 to get an average of 36.8 So now its a difference of 36.8 vs 28.5.
As for the D's they faced....as they say, they play who they played. And they scored (adjusted) 30% more when Purdy took over.