The revolving-door CEO is becoming a fixture of American companies, and is likely to remain so for some time. With executive tenure at a mere 2.5 years and a CEO turnover rate that increased 11 percent last year, newly hired executives must hit the ground running if they hope to be effective before moving on to their next jobs. Helping them adjust to their new positions may not be easy, but it is vital to enhancing the competitiveness of the organization. To help these newly-promoted executives land on their feet, American Express, Bristol-Myers, and other firms use executive onboarding programs. This article discusses executive onboarding and how it can serve as a guide to the new corporate culture and explain how a particular organization functions and what it values.