Those with a more advanced knowledge would be quick to note that Premier League is a separate entity and technically a different league. However, a counter argument is that the promotion and relegation links that exist between the Premier League and the Championship suggest that issues of revenue sharing aside, the Premier League is past of English league football. Even if the Premier League was treated as a separate league, the remaining 72 clubs that constitute the Football League make it by far one of the biggest in the world. For example, the National Football League (NFL) by comparison has just 32 American football teams divided across two conferences : American Football Conference and National Football Conference.