:There isn't a set criteria for the tournaments. If we restricted it to competitions organised by the National and Continental football associations, then we'd trim down the number of teams on this list. However, if that was a suggestion, it's probably one that I've support? 
 :With regards to seasons - you've lost me there to be honest. To date, we've used the conventional season dates for the nation of the club in question. I don't think that it needs to be more complicated than that.