Promoting New Managers
I have seen this over and over in my career. When you need to fill a management position you promote the best worker. Instead of becoming a leader, the worker tries to become a "super worker" and out perform all his people. Promotion may be a nice reward for a good worker but it does nothing for the company. Those folks don't understand that their new job as manager is to get other people to do their jobs better, faster, with less, etc. not do the work for them. This is a whole different skill set than the one the "best worker" has demonstrated that he is good at. Some folks can make the transition but in my experience most have a hard time with it.
