This occurs when a leader's past strengths, the behaviors that led to their initial success, become detrimental in new situations. For instance, a decisive leader who thrived in a fast-paced environment might struggle to delegate or collaborate effectively when promoted to a more strategic role.

Leaders with unaddressed weaknesses may not see the need for improvement early in their careers. However, these weaknesses can become significant derailers later on. An example might be a leader who excels at technical skills but struggles with interpersonal communication, potentially damaging relationships with colleagues or direct reports.

The intoxicating power of success can lead some leaders to believe they are infallible. This arrogance can manifest in poor decision-making, a lack of receptiveness to feedback, or even mistreating others.

While less common, even highly competent leaders can be derailed by unforeseen circumstances beyond their control. An economic downturn, a major industry shift, or even a personal health crisis could negatively impact a leader's performance.