Headlines: Freakonomics Explores Pro/Rel, Part 1

Freakonomics:

So, what if the N.F.L., rather than operating like the monopoly that it is, were to open itself up to some competition? What if, instead of having one closed, professional league sitting at the top of a gigantic amateur pyramid--what if the best teams from that pyramid’s lower tiers could get promoted into the top tier, and the worst teams in the top league could be demoted, or relegated? That’s how it works in most soccer leagues around the world--and let’s not forget, soccer is the most popular sport in human history. So what do you think of this idea?