By Jacob UnruhSTILLWATER — Oklahoma State defensive coordinator Jim Knowles doesn’t want to say what he was thinking as Tyren Irby neared the goal line.Irby — a transfer defensive end from Northwest Mississippi Community College — was working to score on a 56-yard fumble return in the second quarter of OSU’s 27-13 win over West Virginia on Saturday.He was tiring.Read more on NewsOK.com