Leadership is essential to personal career success because without it a clear direction can not be defined. Leadership in the career context is taking personal responsibility for your overall direction and what you would like to achieve. It is also about developing an awareness of the factors that define and influence success and applying good opportunity management to convert situations and events into progress.
This blog has discussed career direction, opportunity management and decision making in a number of previous posts. Leadership is a newer theme but I have the feeling that its relevance will grow in the future. That is of course unless anyone can suggest a better person to entrust with the leadership of their career than themselves!