Practically every company these days has some form of program designed to nurture high-potential employees. But a recent study by the Corporate Executive Board demonstrates that nearly 40% of internal job moves made by people identified by their companies as "high potentials" end in failure. Disengagement within this cohort of employees also is remarkable: One in three emerging stars reported feeling disengaged from his or her company. Even more striking, 12% of all the high potentials in the study said they were actively searching for a new job-suggesting that as the economy rebounds and the labor market warms up, organizations may see their most promising employees take flight in large numbers. Why do companies have so much trouble bringing along their next generation of leaders? The Corporate Executive Board's research showed that senior managers make misguided assumptions about these employees and take actions on their behalf that actually hinder their development. When dealing with high-potential employees, firms tend to make six common errors: assuming that all of them are highly engaged, equating current performance with future potential, delegating the management of high potentials down in the organization, shielding promising employees from early derailment, expecting stars to share the pain of organization-wide cutbacks, and failing to link high potentials and their careers to corporate strategy. These mistakes can doom a company's talent investments to irrelevance-or worse.

Is it a sign or just a coincidence that several talented employees have recently left Sambian Partners? The architecture and engineering firm's latest defector refuses to tell the head of human resources, Mary Donillo, why he was unhappy. And the self-administered employee surveys don't reveal much. When CEO Helen Gasbarian gets word of the next possible flight risk, she promotes the employee on the spot. How can Sambian stop the talent drain? Four experts comment on this fictional case study in R0806A and R0806Z. Anna Pringle, the head of international people and organization capability for Microsoft, thinks that Helen should take a hard look at Mary, who is not safeguarding the firm's talent. Helen must also become an attentive listener. F. Leigh Branham, the CEO of human resources consultancy Keeping the People, thinks that Sambian's employees need a forum in which they can speak openly about their discontent. The candid discussions can expose the "triggering events" that impel people to leave, such as a disconnect between the firm's long-standing focus on innovative design and a more recent concern with profitability. Jim Cornelius, the chairman and CEO of Bristol-Myers Squibb, once faced a potential employee exodus as interim CEO of the pharmaceutical company. He advises Helen to meet face-to-face with her most talented employees and assure them that she understands their concerns and desires. Jean Martin, the executive director of the Corporate Executive Board's leadership council, urges Helen to support a mission and culture to which employees will feel connected. She explains that although people join companies for rational motives, they stay for emotional ones. By the time unhappy workers tell their managers what's going on, it's often too late.

Is it a sign or just a coincidence that several talented employees have recently left Sambian Partners? The architecture and engineering firm's latest defector refuses to tell the head of human resources, Mary Donillo, why he was unhappy. And the self-administered employee surveys don't reveal much. When CEO Helen Gasbarian gets word of the next possible flight risk, she promotes the employee on the spot. How can Sambian stop the talent drain? Four experts comment on this fictional case study in R0806A and R0806Z. Anna Pringle, the head of international people and organization capability for Microsoft, thinks that Helen should take a hard look at Mary, who is not safeguarding the firm's talent. Helen must also become an attentive listener. F. Leigh Branham, the CEO of human resources consultancy Keeping the People, thinks that Sambian's employees need a forum in which they can speak openly about their discontent. The candid discussions can expose the "triggering events" that impel people to leave, such as a disconnect between the firm's long-standing focus on innovative design and a more recent concern with profitability. Jim Cornelius, the chairman and CEO of Bristol-Myers Squibb, once faced a potential employee exodus as interim CEO of the pharmaceutical company. He advises Helen to meet face-to-face with her most talented employees and assure them that she understands their concerns and desires. Jean Martin, the executive director of the Corporate Executive Board's leadership council, urges Helen to support a mission and culture to which employees will feel connected. She explains that although people join companies for rational motives, they stay for emotional ones. By the time unhappy workers tell their managers what's going on, it's often too late.