Time to stand up to the ‘resident bully’. If he is elected chair it will just encourage him and give apparent legitimacy and endorsement. Find someone else who can be press-ganged to do it. Reassure them that they are unlikely to have to do anything because the manager has all the functions delegated so they are really only there as insurance against the bully. Also remember, even when all functions are delegated to a manager it is still possible for the EC to exercise any of those functions when it wants to. Obviously communicate well with the manager but you can exercise the powers of the EC anytime if you feel you need to.