Leadership is a great idea whose time, in most big companies, has yet to come. People strategists see this issue of leadership in a slightly different way. Leaders would constantly experiment. Instead of accumulating power, they would give it away. Leadership would be passed around according to the needs of the situation.
Real leaders do all three, in conscious choice.
Developing leaders in business is a key element of people strategy. Innovation, organization structure, leadership. They are all fun concepts, ripe for analysis, study, and assessment. Creativity, relationships, self-awareness. These are the foundation stones of people strategy.