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          Jim Knowles among six additions to Oklahoma State staff

          • Jake Trotter, ESPN Staff WriterJan 30, 2018, 12:17 AM
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              Jake Trotter covers the Cleveland Browns for ESPN. He joined ESPN in 2011 covering college football. Before that, he worked at The Oklahoman, Austin American-Statesman and Middletown (Ohio) Journal newspapers. You can follow him on Twitter @Jake_Trotter.
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          Oklahoma State coach Mike Gundy announced Monday that he has added Duke defensive coordinator Jim Knowles to his staff.

          Knowles, the Blue Devils' defensive coordinator since 2010, replaces Glenn Spencer, who was fired as the Cowboys' defensive coordinator earlier this month.

          Under Knowles last season, Duke ranked third in the ACC in scoring defense and fourth in total defense.

          Before arriving at Duke, Knowles was the head coach at Cornell, his alma mater.

          Besides Knowles, Gundy announced five other additions to his staff, including Ursinus College defensive coordinator Shane Eachus.