You can't let ambition get too far ahead of opportunity. I've seen a lot of people who had their sights set on a particular job or project, but the opportunity to actually get that thing was so slim. Their focus on the small thing in the distance became a problem. They grew impatient with where they were. They didn't tend enough to the responsibilities they did have, because they were longing so much for something else, and so their ambition became counterproductive. It's important to know how to find the balance—do the job you have well; be patient; look for opportunities to pitch in and expand and grow; and make yourself one of the people, through attitude and energy and focus, that your bosses feel they have to turn to when an opportunity arises.
The dynamics between a CEO and the next person in line for his or her job are often fraught, though. We all want to believe were irreplaceable. The trick is to be self-aware enough that you don't cling to the notion that you are the only person who can do this job. At its essence, good leadership isn't about being indispensable; it's about helping others be prepared to possibly step into your shoes- giving them access to your own decision making, identifying the skills they need to develop and helping them improve [...]
Meeting after meeting was either canceled, rescheduled, or abbreviated, and soon every top executive at Disney was whispering behind his back about what a disaster he was. Managing your own time and respecting others' time is one of the most vital things to do as a manager, and he was horrendous at it.