Understanding the Peter Principle

The diligent administrative assistant moves up to supervisor but fails. The assembly line worker is promoted to foreman but cannot do the job. A teacher earns a deputy principal position in a school but falls flat on their face. Why is that? Why does this seem to happen across organizations?
In The Peter Principle, Lawrence J. Peter and Raymond Hull not only provides answers to these questions, they delve into all the possible implications. The Principle goes like this, “In a hierarchy, everyone rises to their level of incompetence.” How they derived this principle the subject of our conversation that explores one of the funniest but more insightful book on the perils of organizational life ever written.