This article accompanies Holding On to Your Flight Risks.

In The Disengaged Star study, the Corporate Executive Board finds that many companies don't know how to identify and develop top talent or distinguish between high-potential employees vs. high performers.

Among the study's findings:

* Relative to the broader workforce, high-potential employees are almost twice as valuable and three times more likely to succeed as future leaders of the organization.

* CHROs believe hi-pos are 91 percent more valuable to the organization than average employees.

* Hi-pos also contribute disproportionately to the organization?s future leadership pipeline. They have a 75-percent chance of succeeding at more senior, critical roles, compared to only 25 percent for high performers lacking high potential.

* One in five CHROs is most concerned about retaining hi-pos, and an equal number is worried about employees with critical skills.

See the executive summary here.