In a matrix environment, project team members have two bosses: the project manager and their functional line manager. People often are unclear as to which manager is their "real" boss, as there may be a continual shifting balance of power. To avoid confusion regarding performance issues, it is a best practice to have the project manager and functional line manager complete the individual's performance evaluations. Also, greater weight should be given to the project manager's assessment for the time the individual actually worked on the project.