Man I heard once, I think on a podcast, or some video, that when the the Fertittas bought the UFC, they didn't know much about the roster.
So someone told them about this guy, Joe Silva. He was a super fan, with tapes and tapes full of fights. He was apparently very knowledgable and helped them set up some matches, and we know where the rest of the story goes.
Could be bullshit, I've only heard it that one time.
But if its true its pretty amazing.
Super fan becomes ringside matchmaker extraordinaire simply by doing what he loved to do in the first place