What is Leader Derailment?

Imagine you have an employee who is consistently receiving good performance reviews, meeting all his/her goals, and showing up on time everyday for work.  This employee has been with the company for five years now and has proven to be very effective in his/her current role.  This employee sounds like the perfect person for promotion into a leadership position, right? Well, not so fast. Often, these star employees will be promoted to leadership positions based on their current performance and, once in the role, will not be successful.  In other words, these leaders derail. Go to article for more detail on what derailment is for a leader, is it really a big deal, what can be do if it is. http://www.selectinternational.com/blog/bid/196632/what-is-leader-derailment