There are five major reasons that professional sports expanded across the North American continent in the decades after World War II.
- The expansion of the nation’s transportation infrastructure, namely highways and air travel.
- The postwar affluence of the nation, especially in the rapidly expanding suburbs.
- The emergence of cities in the South and West capable of supporting professional sports franchises.
- The monopoly status of professional sports leagues, which were protected by all kinds of anti-trust exemptions, enabling the big leagues to dictate the terms of league expansions.
- The emergence of sports as a signifier of national prominence.
Note that all four teams in the CFP are in cities that did not make it into the Major Leagues.
Notre Dame 32 Clemson 28
Oklahoma 42 Alabama 30