Leadership theories propose that effective leadership depends on matching the leader's style to situational factors. The Fiedler model matches task-oriented or relationship-oriented leaders to situations varying in leader-member relations, task structure, and position power. Situational leadership theory identifies four leadership styles - telling, selling, participating, and delegating - that should be applied based on followers' readiness levels. The path-goal model states leaders should clarify paths and remove obstacles to help followers achieve goals using directive, supportive, participative, or achievement-oriented behaviors depending on task structure and follower characteristics.