If you aren't prepared for people problems as a project manager, you're going to struggle. You need to be prepared to deal with people. This might be issues with lack of teamwork, inadequate communication, unclear roles, little or no motivation, conflicting priorities, clashing personalities, or changing of job roles mid-project. These people problems can be reduced if you take action before problems arise. They can be reduced by paying close attention to three things: the design of the project, the selection of key personnel, and how you define project roles.