In most instances, we find that such teachers are robbing Peter to pay Paul. Its proponents believe that people who manage their own destiny, develop their own plans, organize their own objectives, and embark on a course to fullfil them are more successful than others. This theory has big holes in it. We happen to believe that teaching is a difficult, demanding, and challenging task. Inspiring students, developing teaching activities which generate enthusiasm in students, and encouraging learning are difficult and challenging tasks.
Teaching is more than a fulltime job.
Teachers have enough to do without doing or being asked to do more. Administrators and managers should do the managing, shuffle the paperwork, attend meetings, waste time in conferences,be absent from school, and organize task forces. They are expendable. Students don't necessarily need managers and administrators. Students need their teachers in the classroom.