Take such artificial restraints away and an inevitable process of concentration begins. Football is the game of the city. The big city giants can afford to pay more, so they attract the best players and a reduced number of clubs cut away from the pack. Make the area of operation worldwide and the number is reduced still further. There is space for a handful of giants to go global, first winning over fans in Asia and North America, and then working to find ways to turn this allegiance into money.
The super-size teams are thus able to assemble squads of dazzling quality, making it hard for the mid-size clubs to compete. The price of quality is a large dose of predictability, the big dilemma of today's top domestic leagues.
BBC - Tim Vickery: A top league with both quality and unpredictability