[Kevin]

It depends on how democratic you are.

Many national organizations choose a national board of directors and President (or some equivalent thereof) at an annual or semiannual convention. There's an element of democracy there, so we can put a little more faith in our national organization.

That elected body, in turn oversees the employment of the folks responsible for the day to day operations of the fraternity (the executive director, CFO, etc.)

My advice would be to set up some sort of democratic process whereby you have a group popularly elected and accountable to the national organization. That smaller elected body, in turn, would make decisions on who to hire to take care of day to day operations.