The NFL has stood at 32 teams since the Texans’ 2002 entrance. That expansion effort realigned the divisions and schedule, and the league has expressed satisfaction with the symmetry created. No expansion is likely in the near future, but how the league next expands will eventually become a more important topic.

Pros: A rebuilt Camp Nou with a capacity of 104,000 would offer the NFL the chance to stage the biggest Super Bowl ever. The record attendance is 103,985 at the Rose Bowl in 1980. Like Madrid, Barcelona also brings global brand power. Mediterranean climate. The league has already spoken to Barcelona about a regular-season game.

Commissioner Roger Goodell said the NFL could hold a Super Bowl outside of the United States if the league expands to have an international team