There is a problem with the Bowl Championship Series, but it’s not the one you probably think. College football doesn’t need a playoff. A traditional playoff system – an eight-team or even four-team bracket – brings nothing in the way of advantages over the current system and probably would make things considerably worse. Don’t tell me the traditional architecture for playoffs is the only – or even most – accurate way to determine a champion. The St. Louis Cardinals just won the World Series under that system despite having fewer wins in the regular season than any other team that...