Peter Principle - Wikipedia
Came across this reading Marco’s post. Formulated as part of a humorous treatise, but it may have a greater level of veracity than the Dilbert Principle. Of course, the way out is promoting an employee only when he or she is able to demonstrably handle (by training or experience) duties at the higher level, but at the same time not let people stagnate in a single role for an extended period of time.
Now when you take Ballmer, as CEO he really has nowhere ‘up’ to go. The Peter Principle at its best?