Eichenwalds conversations reveal that a management system known as stack rankinga program that forces every unit to declare a certain percentage of employees as top performers, good performers, average, and pooreffectively crippled Microsofts ability to innovate. Every current and former Microsoft employee I interviewedevery onecited stack ranking as the most destructive process inside of Microsoft, something that drove out untold numbers of employees, Eichenwald writes. If you were on a team of 10 people, you walked in the first day knowing that, no matter how good everyone was, 2 people were going to get a great review, 7 were going to get mediocre reviews, and 1 was going to get a terrible review, says a former software developer. It leads to employees focusing on competing with each other rather than competing with other companies.
-- Microsofts Downfall | Vanity Fair
IBM also use this system. It is every bit as bad as it sounds.