The document discusses the problems with performance management systems (PMS). It notes that PMS are based on assumptions that may not always hold true, such as the ability to objectively measure performance. PMS can send negative messages to employees like only being responsible for your specific job duties. They may also encourage competition between employees instead of teamwork. The document also lists common mistakes made by HR professionals and managers in implementing PMS, such as a one-size-fits-all approach. Overall, the document argues that as currently implemented by many companies, PMS are not effective and a waste of time, needing revision to better systems.