The Universes of softball
and keep e worlds x 4 for marketing purposes, but hey promise rings and they'll show right?
I have to think a world tourney needing 5-6 days off would be as much a deterrent to as many as it attracts.
play one in 3 days, and if you qualify play another in 2 days later on.
The NIT system and then a final 32 team double elim end all would just be entirely too easy for lower levels, and the winner would be verified and roster checked hard before they ever arrived.