How is this for an idea, I think there should be a new rule. Soccer Coaches have 1 use of a play challenge like american football. Once the ball is out of play, a coach can challenge a call, whether it be offsides or a foul in the box that never occurred. A panel of referees watch the play on a screen, in various speeds. If a play is overturned, the challenging team either gets the goal if one was scored, or the ball is spotted where the mistake was made. This would solve a world of problems.