There's already a President [Adams?]of something (and one can buy stock) while the GB has nothing to do with that side of the Org.
A thought about corporate reoganization
Actually Lieu, there is a president for each of the corporations, the Watchtower of NY has a president, the Watchtower of PA has a president, the CC of JW's has a president. IN fact there is a Watchtower Society incorporated in all 50 states, each having their own President.