Ryan Day hires Jeff Hafley, Greg Mattison as co-defensive coordinators

The Ohio State Buckeyes football team has announced the hiring of Jeff Hafley and Greg Mattison as co-defensive coordinators.“I love the idea of having two coordinators on defense,” head coach Ryan Day said. “I like having a diversity of opinion, but even more I like the expertise and experience that Jeff has in the secondary coupled with the expertise that Greg brings to the front seven.The two will join Larry Johnson, who has been promoted to associate head coach, on Day&rsqu