Posted these numbers last week as a statistic I like to calculate. If you recall, 

Potency Factor = Actual Yards Gained/Total Possible Yards

Let's take a look at Ohio State vs. Penn State

• Ohio State: 11 drives, 678 yards possible, 452 actual yards gained
• Potency Factor: 452/678 = 66.7%
• Penn State: 13 drives, 986 yards possible, 482 actual yards gained
• Potency Factor: 482/986 = 48.9%

Notice that Penn State had an extra drive. This is due to the interception returned for a TD. 

Here is Michigan vs. Michigan St.

• Michigan: 10 drives, 644 yards possible, 343 actual yards gained
• Potency Factor: 343/644 = 53.3%
• Michigan State: 10 drives, 731 yards possible, 252 actual yards gained
• Potency Factor: 252/731 = 34.5%

If you cannot remember, here is Ohio State vs. Michigan St.

• Ohio State: 11 drives, 896 yards possible, 614 actual yards gained
• Potency Factor: 614/896 = 68.5%
• Michigan State: 11 drives, 799 yards possible, 202 actual yards gained
• Potency Factor: 202/799 = 25.3%

Michigan vs. Penn State

• Michigan: 10 drives, 690 yards possible, 563 actual yards gained
• Potency Factor: 563/690 = 81.6%
• Penn State: 8 drives, 614 yards possible, 268 actual yards gained
• Potency Factor: 268/614 = 43.7%

I believe Ohio State was a better matchup for Penn State and Michigan was a better matchup for Michigan State. Regardless, the two best teams in the east will more than likely settle things in Columbus in a few weeks.