Now at a Big 12 job in West Virginia, new Mountaineer head coach for Darian DeVries has decided to hire a general manager for the program. According to college hoops insider Jon Rothstein, DeVries has tapped Nelson Hernandez for the position, who had been on Mike Boynton’s staff at Oklahoma State before he was let go this offseason. Here was Rothstein’s tweet Saturday morning that news: “Source: West Virginia’s Darian DeVries has hired Nelson Hernandez as General Manager. Hernandez was on staff at Oklahoma State last season.” The post Report: West Virginia hires Oklahoma State’s Nelson Hernand…