No one is really in charge. Leadership in SIA is shared by all. The chairperson of a meeting is a survivor like you, who is willing to read the format and facilitate the meeting. S/He can be the leader for a given period of time. This is called a service position. Leadership and service positions rotate, giving everyone an opportunity to contribute to the meeting. Other service positions may include the Treasurer, Liaison, Secretary, Regional Intergroup/World Service Representative, Set-up and Clean-up helpers, etc.