The document discusses various topics related to assessing and measuring leadership, including the following key points: - There is a gap between what researchers know about evaluating leadership effectiveness and what methods organizations actually use. This impacts the quality of leadership. - Estimates suggest the base rate of managerial incompetence may be between 50-75%. Various tests and models exist to determine competence levels. - Identifying, developing, and retaining high quality leadership talent is a major concern for organizations. Several factors contribute to a shortage of effective leaders. - Best practices for assessing leadership potential involve defining competency models and using a multiple hurdles approach with inexpensive initial assessments before more rigorous evaluations.