How well do you think that Jack Welch's performance review system evaluated employee job performance (as we have defined it in this chapter)? Which specific dimensions of job performance do you think his system emphasized? Describe advantages of the PD@GE app as a means of evaluating employee job performance. Describe disadvantages of the PD@GE app. Explain why managers with longer tenure at GM may have doubts about the effectiveness of the PD@GE app. What could be done to alleviate potential concerns.