At the conclusion of the 2018 season, Ohio State's pass defense ranked No. 86 in the country. This year's version is ranked No. 5.
The Buckeyes had the talent last year, but coverage breakdowns and poor angles led to explosive plays in just about every single game. To simply say that Jeff Hafley has turned things around in the secondary wouldn't fully do justice to the work the man has put in.
Ohio State is giving up just 152 passing yards per game, and it's even more impressive when you consider just how often the opposition has needed to throw the football.