>>7146982Just constant signings. It seems like there's been at least 2-3 signings per month for the last year and it adds up.
The truth is that having too large of a roster is just as bad as having too small of a roster. You can really only push so many people at once, so you don't get the best out of everyone then those people get angry. Wrestlers also have a short shelf life and people just get stale after being around for a while.