“Leadership does not happen in a vacuum; leaders are always acting within a larger organizational and social context. A leader who possesses the “right” competencies has no assurance of success; I’ve seen dozens of leaders who were competency tested to extremes, matched to roles, and failed — social context almost always trumps psychological poo-bah when it comes to leadership success. Leadership is messy, it is relational, and it happens in millions of interactions every day around real work. The lesson for leaders? If you want to be a great leader, the “box ticking” approaches your organization takes to develop you aren’t likely to help. You have to understand the social system you’re working in first.”
–What Separates High-Performing Leaders from Average Ones https://hbr.org/2015/11/what-separates-high-performing-leaders-from-average-ones