Why it's scary: Even if you weren't that crazy about your old manager, at least you were familiar with her style. A newcomer might be more demanding, less open to ideas, or even have a leadership style so alien that your job performance is affected.
How to deal: Schedule a meeting with your supervisor shortly after her first day. "Ask, 'What are your expectations? What are the areas that are important to you?'" says Joel Garfinkle, a career coach based in California. "If you're working right away on things the boss cares about, you have a better chance of earning her respect."
Instant sanity-saver: Keep your resume polished and make it a priority to reach out to all your business contacts, just in case your boss's strategic plan includes making staff cuts.