The new coordinator may not get the chance to meet the previous SHG coordinators at all. There may not be a proper “hand-over, take-over” between them at all. This appears to be one of the biggest dangers. Solution is easy: Identify your second line (Assistant Coordinator) at the earliest- at least six to eight months before life-events may take you away from the shg.
(*Burnout – see : http://career-advice.monster.com/in-the-office/work-life-balance/fight-burnout-in-social-work/article.aspx )