By Alek Arend Kirk Herbstreit is furious with a viral football camp video making the rounds on Twitter this week. In the video, a defensive back lines up close to a receiver in a one-on-one drill. Before the play even begins, the receiver shoves the defensive player to get some separation. The DB refuses to take any steps back, however. The moment the ball is snapped the defensive back jams the wide receiver five yards backwards. The football players in attendance go wild. So what’s the problem? Well, football’s not even really being played in the video. Herbstreit reacted to the video via Twi…