To me personally, and I know it's been discussed ad nauseum, those numbers say combine some worlds. Problem is, no simple, good, fair or pleasing way to do it.
I've had one team for "almost" a century's worth of seasons. I've had another for close to 60. Were I to have to give those teams up, I'd probably choose to leave the game and therein lies one of the biggest problems, coaches who have been at certain particular schools for more than a handful (literally) of real world calendars.