Greg Schiano Out as OSU DC, Reportedly Replaced by Michigan's Greg Mattison

Ohio State just got another win over Michigan.

Wolverines defensive line coach Greg Mattison will leave Ann Arbor to join Ryan Day's coaching staff as the Buckeyes' new defensive coordinator, per Sam Webb of 247Sports. 

Day released a statement on Schiano's departure:

"I want to thank you coach Greg Schiano for the example he set every day, for the players and the members of this coaching staff, of what it means to be selfless, committed and dedicated. Our players saw these attributes in Greg and they learned from his example. I, personally, also want to hank Greg for his wisdom and thoughtful guidance during my time as acting head coach this season. I wish him the best as he pursues options in the NFL."

Schiano was the Buckeyes defensive coordinator for the last three seasons under Urban Meyer. Alex Grinch, who was a co-defensive coordinator in 2018, recently left the program to take the coordinator position at Oklahoma.

Jeff Hafley, who last served as the San Francisco 49ers defensive backs coach, will serve as co-defensive coordinator, per Pete Thamel of Yahoo Sports.

Mattison has undoubtedly been brought onboard to assist Day with his experience. The 69-year-old has been on the sidelines at the collegiate or pro level since 1976. He's twice worked at Michigan, served as a defensive coordinator at Notre Dame and Florida, and spearheaded the Baltimore Ravens defense from 2009-2010.

The Michigan defensive line ranked among the nation's best last season, helping the Wolverines to a 10-3 record. 

Hafley has spent the last seven seasons as an NFL assistant with the Tampa Bay Buccaneers, Cleveland Browns and 49ers. He previously was on the defensive staff at Albany and Pittsburgh.

Day took over as the Buckeyes head coach at the end of the 2018 season upon Meyer's retirement. The 39-year-old is an offensive specialist who served as Meyer's offensive coordinator, so it makes sense the Buckeyes are loading up on defensive-minded assistants.