If the task is setting limits on the work, delegating, or defining deadlines, then the manager role should be the choice. If the task is more complex, requiring the assistance of a number of other people to complete, then the facilitator role is best. As a practical guideline, for a given work session or meeting, one primary role should be used. This is wrong. In any company you will find all types of personalities who lead and manage teams with great success.
Great leaders are ones who challenge apathy and lead their teams toward a personal vision.
Understanding yourself is one matter, but understanding your team is equally, if not more, important. What we re seeing today is a much more selective approach to team work. Look for interpersonal skills as well as technical expertise. Team Mangement Systems Inc. founders and researchers Charles Margerison and Dick McCann, for example, have developed a system comprised of several questionnaires that identify individual work preferences and skills, provide feedback on leadership strengths, interpersonal skills and decision-making styles, and analyze jobs based on eight work functions. This system helps companies put individual team members into roles where they can be most effective.