Ideally your manager would leave, and take you along to the new company. Such situations do exist --- and they're immensely valuable, when you hire a manager to

Ideally your manager would leave, and take you along to the new company. Such situations do exist --- and they're immensely valuable, when you hire a manager to hire his team. Elite CEOs often work like this - they have a "legal guy", a cohort of CxOs, etc. who they bring along when hired.