In the 1980s the General Electric CEO, Jack Welch, advocated a system of employee performance he called ‘rank and yank’. Employees were, on an annual basis, sorted and ranked; poisson curves were drawn as lines on a battlefield and employees found themselves promoted, rejected or forced to remain as they were and try again next year. Since then, the ‘dreaded’ annual review has been an intrinsic part of major organisations for nearly thirty years. Managers curse the inevitable deluge of paperwork and difficult conversations. Employees compete for promotion or fear unemployment. If this sounds familiar, rejoice! A revolution is underway.