Self-awareness is key for leadership success, and this leader needs to take an honest look at his or her behaviors, and how they might impact others. People change behaviors when those behaviors are not helping them achieve their goals fast enough. If you are achieving what you want fast enough, then there is no need to change. This leader has to reflect on their behaviors and get more feedback from others as well. Then, pick a few key behaviors that are the most important to change, and the leader has to make those behaviors a focus. Others only think the leader is serious when they see a behavior change.