In the English soccer system the top teams from each level are promoted to the next level and the bottom teams are relegated down. I think it's a cool system but I can't ever imagine baseball switching over. That evolution would need a 100 year + timeline of events to get to that in my opinion... but maybe possible just because we have a well structured minor league system. Are there any tiered leagues in the US where we do this right now for any sport?
Odds of baseball ever doing this?