In general, management is about organization. There may be something mechanical about it, not in the negative sense of a “mechanical performance,” but rather in its focus on the technical “how” of accomplishing tasks. Leaders, in contrast, focus on the “why,” motivating and inspiring their subordinates. Leadership is about people. Not all leaders have the skill set to be managers, and not all managers have the skills to be leaders.
The critical role of a manager is to ensure that a company’s many moving parts are all working properly together. Without this integration, problems can arise and issues can “fall through the cracks.”