Personality type most certainly plays a part in how organizations and people are led. Understanding the strengths and weaknesses of the different personality types when leading is essential to having productive organizations. For example, a major question is whether or not a person is leading based on his or her personality or on the needs of the organization. Human resource developers can help supervisors, managers, executives and others understand how to modify their behaviors to deal more effectively with subordinates. My BEST Leadership Style can be used in conjunction with other ongoing training because it is administered in a short time and it gives valid and reliable results.