Most careers don't begin with a dream job. After one or two years, many careerists find themselves looking for a new opportunity to advance themselves. After five, 10 or even 20 years in your career, other types of career goals often emerge.
Maybe you are looking for more work-life balance. Maybe you have discovered that working for toxic bosses is no longer is bearable. Or, perhaps you realized that your career trajectory has stalled; your goal to be CEO at 40 has been superseded by other priorities, and on the eve of your 50th birthday, you realize you want to get back on track.
Whatever your situation, waiting until your pain has reached an unbearable threshold is not the best strategy. Instead, when thoughts of change begin disrupting your day-to-day, take note, and take action.