https://www.espn.com/college-football/powerIndex/_/view/efficiencies
Through 5 games Ohio State is ranked 2nd overall for total efficiency of 93.1. The offense is ranked number 1 with a 97.7. That is something that is just remarkable. The next closet is TCU at 93.2. With comparing these 5 games to the full seasons of past the difference is hard to imagine just how spoiled we are as a fanbase to have a director like Day at the helm. These are the numbers for the number 1,2, and 3 ranked offenses for the last 17 years:

After making this chart, (knowing its only 5 games) its interesting to see how the offense ranks against past years champions.