When I try to resolve issues and conflicts, I see a clear gap between expectations of both parties. Most of the times, expectations are not made clear. In professional companies, you make the expectations clear in terms of KRAs & results. But when it comes to the appraisal, managers say, results are ok but still employee needs to improve. There are certain points discussed, which employees are not even heard in past.
Awareness of an employee plays important role in success. You are expected to be smart enough to understand dimensions of human behaviour and thereby perceived expectations also.
(Cartoon Source: http://www.cartoonstock.com/)