Are you paying ATTENTION? Are you PRESENT when you work? Do you solve PROBLEMS? If you say 'No' to any of these areas, you probably have Career ADD.
It's hard to be a leader in today's economy. Add that you need equal parts of courage, vision, empathy, and reality (Peter Koestenbaum's Leadership Diamond) AND get your work done, it's almost impossible. I've reduced my list of hundreds down to five reasons.