The document discusses 10 common self-defeating behaviors that leaders engage in that can sabotage their success. These include thinking you are indispensable, talking over others instead of listening, not delegating tasks, using jargon others don't understand, avoiding firing underperforming employees, fear of giving performance reviews, avoiding confrontation, fearing failure, and not getting buy-in from employees. The key to overcoming these behaviors is to recognize when you are engaging in them, seek input from talented employees, delegate authority, and surround yourself with people who will provide honest feedback to help you improve.