Some things are supposed to be easy.
Things like leagues. Leagues are easy, right? Teams go up, teams go down, some simple rules and bongio - you've done it. If only. Leagues in TCFG are fairly complex beasties.
As in real life, an entire league system is split into levels, and each level is further split into a number of divisions. At the top, there's one division. At the bottom, there could be as many as 30. It all depends on the nation. These levels all reorganise themselves each season to maintain some sort of regional distribution of teams, and all is good.
The hard bits come in when you start to think about forced relegations or promoted teams not making the criteria. Then you end up with some levels having too many teams, and others being relatively empty, and then you have to start messing about with relegations and promotions in order to get them in order again. And that's not easy, especially as you can't forcibly relegate a team just to make up the numbers. That's a bit unfair.
And just when you think you've got all that done, a giant monster comes along and stamps on it all, screaming "What about when leagues split into two very separate halves?"
Some league systems are really made up of two or more leagues, that converge as you get higher. If you're in one of these smaller leagues, you can't be moved to the other just to make up the numbers. Oh no, you're stuck there. You know where you are, and you know where promotions and relegations go. It's not too bad until the same problems as before jump in through the window. What if it's not even? It just gets messy.
Meh. It'll work out, I tell myself whilst crying into a pot of soup. And if it doesn't, at least it might generate some spectacular fractal displays on the screen.
Smashed screens are fractal, right?