The weekly edition of my ongoing diary evaluating the B1G using the advanced stats of the Football Outsiders (http://www.footballoutsiders.com/stats/feiplus). Here is the chart:
Following suggestions, I've rotated the chart 45 degrees so that the better teams are at the top of the chart and worse teams are at the bottom. Teams that are better on defense are on the right (e.g., Michigan State), teams that are better on offense are on the left (e.g., Ohio State).
Michigan is migrating towards the clump of okay B1G teams: Iowa, Northwestern, and Nebraska. These games are certainly winnable but they are looking less and less like gimmes (per the advanced stats, of course).
The B1G ten is currently dominated by Ohio State, Wisconsin, and Michigan State.
Purdue is worse than Akron.
That Penn State loss is not looking any better.