Is everybody happy?
In addition to balancing time, cost, and quality, project managers must balance another constraint - the expectations of the client, project team, and employer. This is an ongoing constraint that must be managed throughout the life of a project. Among the recommendations that this article makes are: don't expect to keep everyone happy all of the time; don't play one group of people against another; and understand the different desires of all those with a stake in the project. Project management certification can do much to enhance a project manager's credibility and authority in these situations.