The roles of individuals within a system that is the target of an intervention strategy are determined by the change manager. The system can be a small work group or an entire organization. Individuals or group within the system may be asked by the change manager to take on a specific role in the change process. For example, some organizations create a change committee whose role it is to work with both the change manager and the change agent in designing and implementing an intervention strategy. Committees or task forces are important for collecting data, developing team skills, and defining the emerging tasks and roles within a system. Ideally, these individuals will be energized by their involvement, motivating them to put forth the extra effort needed for committee work. Amodeo and colleagues describe a successful organizational change effort at a substance abuse agency that was led by a “change team” of employees.