Willie Martinez has been named the new defensive backs coach at Oklahoma. OU Head Coach Bob Stoops made the announcement today and the move is pending approval of the university’s board of regents.As part of the move, assistant head coach Bobby Jack Wright, who has been on the Sooner staff since 1999, will move from the secondary to coaching OU’s defensive ends. He previously coached the defensive ends from 1999-2004 when the program produced five All-Big 12 players at the position.