Firstly let’s see the definition of each manager and leader, management and leadership. Manager is an individual who is in charge of a certain group of tasks, or a certain subset of a company. A manager often has a staff of people who report to him or her. While leader is Person or thing that holds a dominant or superior position within its field, and is able to exercise a high degree of control or influence over others. Management is the organization and coordination of the activities of an enterprise in accordance with certain policies and in achievement of defined objectives. Leadership in an organizational role involves (1) establishing a clear vision, (2) sharing (communicating) that vision with others so that they will follow willingly, (3) providing the information, knowledge, and methods to realize that vision, and (4) coordinating and balancing the conflicting interests of all members or stakeholders
We change them but the keywords or some words are still the same. What about that?

http://www.maccoby.com/Articles/UtDBMaL.shtml http://www.thepracticeofleadership.net/2008/04/08/leaders-vs-managers-are-they-really-different/ http://syque.com/bookstore/changingminds.htm http://changingminds.org/books/book_reviews/book_reviews.htm http://changingminds.org/disciplines/leadership/articles/manager_leader.htm http://changingminds.org/disciplines/leadership/articles/manager_leader.htm they must have leadership-simil
"The difference between managers and leaders, he wrote, lies in the conceptions they hold, deep in the psyches, of chaos and order. Managers embrace process, seek stability and control, and instinctively try to resolve problems quickly – sometimes before they fully understand a problem’s significance. Leaders, in contrast, tolerate chaos and lack of structure and are willing to delay closure in order to understand the issues more fully in this