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If you aspire to mastery, you must use your head, use your heart, and use your hands. That is, you need a logical model that guides your approach to leading people and change (head), a clear sense of purpose and an authentic way of engaging with others (heart), and practices that enable you to be prepared and competent in the moment (hands).
These three essentials are not a prescription for the "right" way to lead. They are simply a structured approach to developing your way of mobilizing and organizing people, your brand as a leader, your unique touch.