It may not be necessary. Let me explain.
My understanding is this: both Sherman Tully and his GBI counterpart, Louis Tully, are used only for GBInc or GBI business, respectively. The two members who assume those identities have other, older user names they use for their “regular” business. While the user name Louis Tully is a Moderator name, that persons other account is not (I've heard who this person is, but I'm not naming him here. I might not even be allowed to). Conversely, the name I've heard attached to the Sherman Tully persona is that of a person who is already a Moderator here (again, not naming names). So if “Sherman” sees something he thinks needs to be Modded he's already able to take care of it.
(And if this post disappears I'll be really suspicious…)