While Michigan hasn't beaten tOSU or PSU for a division crown, Riley can't even handle Iowa straight up. I don't hate Riley, I just think he was poorly prepared or informed what it would take to win in the B1G.
I think that Michigan lost to Iowa last year as well.
How did Michigan do against Colorado, Wisconsin and Penn St? Give up fellas, you aren't going to be able to favorably compare Harbaugh/Michigan to Riley/Nebraska. It's not close since the two coaches were hired.
Usually, it takes a crew of 5 men and some large equipment to move goalposts like this.
How did they do vs Penn state? They finished behind them in the division, that's how.