LOS ANGELES--(BUSINESS WIRE)--Research by Korn Ferry (NYSE:KFY), the preeminent authority on leadership and talent, identifies key risks for derailment - an unexpected—and involuntary—stall during a leader’s career ascent. The research shows that a significant number of high-potential leaders are at high risk to derail. More than a quarter of leaders (26 percent) who were rated by their bosses as having high potential also were seen by their bosses as having high risk of career derailment. In a