Does "rank and yank" mean "entering the official list or being thrown out"?

Context:

Philosophy[edit]Richard Dawkins' book The Selfish Gene was Skilling's favourite book [10] and served as the foundation of his managerial philosophy. Skilling held, by Skilling's interpretation, a Darwinian view of what makes the world work. He believed that money and fear were the only things that motivated people. He set up the performance review system (PRC) in which employees were graded from 1 to 5. Ten percent of people had to be a five, regardless of absolute performance; those 10% were to be fired. (This process is similar to the grading system in place at Harvard Business School while Skilling was a student there. In each class, instructors were required to grade 15% of the students with either of the two lowest grades available - "Low Pass" or "Fail") The scheme came to be known as "rank and yank". Skilling said "The PRC process is the most important process we conduct as a company".

Dawkins has distanced himself from Enron and Skilling, saying that Skilling misunderstood his book. Dawkins has said that he has never advocated selfishness as a means of progression.[30][31][32]