For a team to function optimally the leadership must establish and clearly communicate the processes or procedures to be followed in various adverse or negative situations. Most adverse situations will be anticipated by strong leaders, and a contingency plan can be established. Some negative situations cannot be anticipated but leaders should have sufficient resources, flexibility and vision to identify a plan that can resolve the situation. One method of resolving negative situations is consensus-building. Consensus-building is a dialogue-based process, usually occurring over a period of hours or days, in which all members of the team reach agreement about the intended course of action. Consensus is a popular method of governance in numerous religious communities including the Quaker community. It has also been used successfully in small businesses, housing co-ops, political groups.