Cummins forced ranking is horrible. The "coaches" who are your bosses but don't like to be called that will not say if your doing anything wrong or right until the mid year review or year end review and then it's like "if you know I was doing something wrong why didn't you tell me then". There is no skill matrix where you can do this and this and that and be graded a high performer. No, it's all based on your "coach" and his bosses and HR. Some have been talking in the hourly about putting together a class actions suit against Cummins over how this system is s-xist, racists, biased, favortism etc. etc.. I think cummins made a big mistake using this for the hourly employees, big mistake.
Get ready for the lawsuit.