"The performance appraisal nourishes short-term performance, annihilates long-term planning, builds fear, demolishes teamwork, nourishes rivalry and politics… it leaves people bitter, crushed, bruised, battered, desolate, despondent, dejected, feeling inferior, some even depressed, unfit for work for weeks after receipt of rating, unable to comprehend why they are inferior. It is unfair, as it ascribes to the people in a group differences that may be caused totally by the system that they work in."
Deming told a story of visiting a business and seeing a plaque on the wall honoring the "employee of the month." He asked how many employees the business had. The number was exactly 12.