There are those that say no performance appraisal can effectively motivate any kind of performance or skill acquisition. As a result, they are simply a waste of time rather than a cause of resistance to change or cause of failed change efforts. However, the research evidence does not support this view. It is clear that performance management systems that result in clear achievable goals and a clear connection between performance and rewards do, in fact, significantly influence behavior. But, there is the danger that they motivate yesterday’s right behavior rather than tomorrow’s right behavior.