Many minor professional and amateur leagues throughout the United States and Canada have also appointed commissioners. The title has not caught on outside North America. In Great Britain, the title "chief executive" is used for the most closely equivalent position in that country's professional leagues. A key difference between the state of affairs in North America and Europe is that most European sports (including those in Great Britain) include powerful governing bodies that operate independently of and hold some power over the professional leagues, whereas in North America the equivalent governing bodies' "de facto" authority is mostly confined to amateur sport. For example, while the Premier League is roughly as lucrative and wealthy as the "Big Four" North American leagues, the Football Association nevertheless has the power to veto the appointment of that league's chief executive.