Final answer:
The skills-based model of leadership by Mumford et al. differs from the 'great man' theory in that it emphasizes developable skills, rather than inherent traits, as the source of effective leadership.
Step-by-step explanation:
Mumford et al.'s skills-based model of leadership significantly differs from the 'great man' approach in the emphasis on developable skills and leadership capacities that can be learned and enhanced over time. The skills-based model suggests that effective leadership is a result of specific skills and abilities that can be cultivated, rather than an inherent quality that one is born with, which is the central idea of the 'great man' theory. The 'great man' approach to leadership implies that leadership is an innate attribute, with leaders often portrayed as heroic, mythic, and destined to rise to leadership when needed.
The skills-based model looks at leadership as a set of competencies that can be developed through experience and intentional practice, rather than being preordained. This model is in alignment with contemporary understandings of leadership that recognize the importance of contextual factors, the ability to learn and adapt, and the role of specific competencies in effective leadership. Unlike the 'great man' approach, the skills-based model does not assume that leaders are rare individuals destined for leadership, but rather suggests that many people have the potential to become effective leaders if they develop the right skills.