Personnel Development 2020 provides insights into how gender, diversity, quotas, and individualization are gaining ground in human resource management and transforming personnel development and leadership in the context of demographic change. Personnel Development 2020 is strategically planned against the backdrop of megatrends, aligned with goals and outcomes in a systemic understanding of organizations, and made more effective through new roles of personnel developers. Gender competence is a meta-competence in the social practice of human resource management and a core element of leadership. The focus of human resource management and leadership is no longer on individuals, but rather on their diversity, their potentials, their interactions, and their communication. Under pressure for change, organizations are revising their self-concept, demanding proof that personnel development is effective and that leaders understand their personnel strategy as a practice. Instead of best practice, the concept of best fit applies to a future-oriented personnel development 2020.