Some like soccer to cheer on their team. Some love to play it. I became a referee 10 years ago and from the best seat in the house I love watching the battle, the strategy, and the skills of coaches, players and teams. Overtime it has provided an education in managing people and group behavior that I believe has given me insight into all management activities.
I believe the role of the referee is to judiciously apply the Heisenberg uncertainty principal to maximize fun for participants and observers, to manage safety and to optimize the perception of fairness for all participants of a system that starts in motion when the referee whistle is first blown. :)