Let me start by saying, having excellent managerial skills and being able to run a big complex organization solidly and efficiently, so activities function at an optimal level, does not mean you are a leader. It simply means you are a superb manager. A leader, on the other hand, envisions, inspires and motivates. Needless to say, a manager and a leader can not go without one another, and they complement each other, but there is a big difference between the two.The main difference between them is that managers carry out functions that are required in any business, whereas leaders build relationships between them and their followers that can dynamize an organization.
Leaders create vision and strategy, focus on people, motivate and magnify people, and build trust. Whereas, managers plan, budget, organize, control, solve problems, evaluate and facilitate.
So, leaders set the direction, and create systems that managers can manage, and transform them according the the dynamic changing environment around them to allow innovation, evolution, growth and opportunities. In other words, they deal with the possibilities.
On the other hand, managers plan, deal with the details, magnify processes and procedures, while they efficiently and effectively run the organization and its people day after day, month after month, year after year.
Leaders appeal to the heart, hence, win followers. It is what I call; “The Power of Personal Charisma”. Leaders have the charismatic personality that appeals to their followers. You don’t tell people to follow you; following is a voluntary action which is not only measured by loyalty, but also by respect.
Leaders make heroes of their followers, which makes them willing to take chances and take risks, because they are inwardly motivated by their leaders. These followers are inspired and influenced by their leaders, and hence, they look to leaders for purpose and for a vision of their destination.
Leaders create circles of influence, not power. It is creating one’s unique voice that has an outstanding influencing effect on the company and the people around you.
Managers appeal to the head and create circles of control, hence, have subordinates who fully trust their manager’s capabilities in running the organization by the book, with great efficiency, and excellent skills. They look to their managers for road maps that guide them on how to get to their destination.
A leader’s energy is driven by his passion, thus empowering and inspiring innovation, while the manager’s energy is driven by his control, thus ensuring rules and processes are followed.
“Influence and inspiration separate leaders from managers, not power and control”.
Sufian Awad 
Well said and definitely agree!!!