This report reflects on the complexities, theories, and effectiveness of leadership in Tesco. It also highlights the areas of development and an action plan to enhance leadership qualities. The report explains the Great man Theory of leadership and the Behavioural Theory of leadership. It also emphasizes the importance of personality, human skills, communication skills, and administrative skills in maintaining the effectiveness of leadership. The action plan includes objectives, execution of qualities, implementation of objectives, and how to process objectives.