He examines different approaches to leadership, the morality ofleadership and how the wider context can determine the effectivenessof a particular leader.
他研究了领导的不同方法，领导的品行，以及更广泛的背景是如何决定了某一个领导者的效力。
2
Though the group's effectiveness depends on the actions of the followers, leadership is a crucial role to unity them to strive for a common goal.
虽然本集团的有效性取决于追随者的行动，领导是一个至关重要的作用，团结他们争取一个共同的目标。
3
However, the effectivenessof transformational leadership and transactional leadership was influenced by the situational and followers' variables in the view of contingency theories.