What is the difference between leadership and mannagement?

Management, by its very nature, is exacting, precise, detailed and involves specific and usually, timed, actions. Leadership, on the other hand, requires a much broader brush and involves aligning, goal-setting, vision-sharing (selling), inspiration and an inherent lack of any time critical. One's leadership ability is compromised if they have to paint a big picture of the future in the morning, then hold employees to specific deliverable in the afternoon. Similarly, a manager's ability to keep their group focused on the task at hand is diminished if they regularly espouse what could be instead of what is.