Fencer: There are basically two functions: Set up tournaments and ponds, and be a team captain as being a boardmod doesn't require any further rank. why not introduce a fellowship-manager and a team-manager. this team manager has the same rights as todays manager, i.e. becoming a captain of a certain team and managing it. and the fellowship manager may set up tournaments and ponds.
It would also be a possibility to introduce a third rank, something like a board manager, who can make new boards, delete boards, and announce moderators for boards.