Coaching Changes: Penn State retained nearly its entire staff again. The only change came when it fired wide receivers coach Taylor Stubblefield, who landed at Air Force. That should be a fairly good indication of his abilities. James Franklin plucked Virginia wide receivers coach Marques Hagans from his alma mater, where he produced quite a few NFL receivers despite largely coaching at a lower-level program. It’s a great hire and should improve the wide receiver room after Stubblefield failed t…