Grinch's Washington State defenses yielded an average of 27 points per game from 2015-2017.
As a co-DC, his Ohio State defense in 2018 yielded 26 points per game.
While this looks good compared to OU's defenses in recent years, it's far removed by the defensive superiority of Alabama and Clemson, two teams who look to own and operate college football for a while.
Again, until OU addresses playing defensive football as much as its arena football offense, the Sooners will continue to paint themselves into a corner when the post season playoffs arrive.