The knowledge of the field of work one has chosen gives the leader great strength. 'Knowledge is power' is a well known maxim.
A leader develops best if the field of his work is in keeping with his aptitude and liking. Assuming that the field is chosen well, a leader should widen his knowledge and technical competence in his job. In the fast-changing world of technology, updating one's knowledge is essential. This helps a leader to acquire flexibility in responding to changes and to deal with people with necessary confidence.