Leadership is personal
Exploring the literature on leadership theories and on leadership in general the more I am convinced that leadership is a personal matter in the first place. So, if you want to become an effective leader, in case you aren't, you need to understand the need for change. And it's you, no-one else, that can do this for you. Of course, friends, collegues, team mates, family, consultants and so on can tell you some areas for improvements (as we call them here in WMG), but if you don't realize that you can improve your skills, nothing will change.
Each one is the leader of oneself. In this respect, we determine our path to a great extent. In practice that means that we are responsible for many things that we may not realize. Accordingly, when we will be in leadership positions, we will determine the luck of a department, its people and even the luck of an entire company. Thus, if we aren't the effective leaders that the circumstances will demand, it's never too late to become one. Only, if we realize that leadership is personal and the change starts from inside us.