Bezos suspected that managers couldn’t be counted on to voluntarily embrace the hassle of additional hiring and feared that a tolerance for mediocre performers would spread through the company and erode the “Day 1 mentality.” Stack ranking would force managers to upgrade the talent on their teams. “People thought it was a mean-spirited process and to a certain extent it was,” Niekerk said. “But in the big picture, it kept Amazon fresh and innovative.”
