Defensive notebook: What we learned about Buckeyes depth chart in win over Marshall

Ohio State played 29 defenders on Saturday against Marshall, and the way the Buckeyes used their depth tells us quite a bit about the depth chart moving into Big Ten action. That's what the Lettermen Row Sunday defensive notebook is breaking down this week with an eye on next week's Big Ten opener against Michigan State. Let’s dive in. Note: This is a weekly notebook of the Buckeyes defense.