If the participants are also a congregational leadership group, the group may want to reflect on current or past congregational challenges and issues. Be ready to ask the group explicitly whether they wish to do this. If they do, be sure, as facilitator, to maintain appropriate boundaries for yourself and the group.
Workshops should not be an occasion to criticize or undermine past or current leaders, lay or professional. You are strongly urged to add to the covenant your group creates an agreement not to criticize or undermine current or past leaders.