I definitely agree with needing at least 3-5 people in charge, although I also like the idea of having everyone with equal votes and no one in charge, more like a union--maybe with a rotating Speaker position for calling votes but not having any real authority otherwise. I strongly dislike the idea of having fewer than that in charge, for a variety of reasons.

...that said, Fai is likely to join the Collegiate society rather than stay in the Foreigner's Guild. He's probably going to try to eventually create a faction for teaching magic.