It seems like every year Ohio State has to reload on defense after seeing a number of quality players either graduate or head off to the NFL. Over the past few years, Ohio State has been able to plug in talent to their holes on defense and not miss a beat. This year has been a whole different case, as the Buckeyes are 49th in the S&P+ rankings.
The failings of the defense have been especially troubling due to the blue-chip talent the Buckeyes have amassed on defense. Ohio State was undoubtedly hurt by the loss of defensive end Nick Bosa to injury, but the problems with the Buckeye defense goes a lot deeper than the loss of Bosa.