Leaders learn to focus on the specific outcomes they wish to produce using various communication vehicles. They become better observers of how their presentations build or destroy relationships internally with employees and externally with customers. They learn that by taking a proactive approach to their communication, they are more receptive to the feedback necessary to enhance their performance. Do your own test. When we are not open to feedback we are not truly open to continuously improving our performance.
Continuous improvement is what defines coaching and leadership.
Also, note if there is any action you feel motivated to take as result of reading the information. E-mail me with your responses. I recently became a coach. I have 15 years of experience in supervision, but for the last six years I was back in the pits. I now have on my team several contemporaries who want to be left alone.