Statistically Speaking put out it's Standard Deviation Power Index rundown for the 2012 B1G season. This is a pretty good blog. Unfortunately it looks like Matt - the blogger pasted the 2011 chart into the 2012 discussion. No worries... still a good post...especially for his dig at the Buckeyes undefeated season that wasn't.
Here's his summary of SOS and margin of victory with the 20 modern teams that have finished a season undefeated. The parens show the national ranking. OSU was the worst of the bunch.
From the same post...
Any team that struggled to put away Cal and Purdue at home, and Indiana on the road was probably not worthy of gridiron immortality.
I like this guys blog... thought I'd share this link. Unfortunately another reminder of just how bad the B1G was last year.