Professional sports teams have two problems that most businesses will recognize. The first is rising costs: The steady increase of player salaries (average Major League Baseball salaries, for example, rose 5.4% to a record of $3.39 million in 2013) puts pressure on teams to increase revenues at the same pace or risk becoming less competitive. The second is fan loyalty – and no, that’s not a redundant term. Fans by their nature are loyal to their team, but many sports organizations do a poor....