A few things that instantly come to mind: 1.) When they are not, and have not been, performing their job at a level that justifies their compensation. 2.) Whe

A few things that instantly come to mind: 1.) When they are not, and have not been, performing their job at a level that justifies their compensation. 2.) When they have a negative impact on the team (rude, pessimistic, etc.) 3.) When it has been determined by the company that it is better off without that individual.