The new in helmet communication has come under scrutiny amid the Big 12 requesting teams return their system amid security concerns. Now, Nebraska Cornhuskers head coach Matt Rhule shared that the Cornhuskers also sent in their in-helmet communication equipment for review. Rhule added that it’s not unique to Nebraska that they’re sending in their equipment. This comes in the first season that coaches are allowed to communicate to players in their helmets before plays. Preventing sign stealing was, initially, a major reason why these communication techniques were allowed. JLAB has the best audi…