A manager might decide to move from measuring performance on an individual basis to a team basis if:

A) individual performance can only be evaluated by subjective supervisory ratings
B) the tie of pay to individual performance is not critical
C) in order to be productive, employees cooperate
D) competition among employees is dysfunctional
E) any or all of the above conditions exist

All of the listed conditions can be valid reasons for a manager to transition from evaluating individual performance to team performance. If individual performance cannot be objectively measured, the team's overall performance may provide a more accurate assessment. Similarly, if pay is not directly tied to individual performance or if competition among employees is harmful, focusing on team performance may be a better approach. Additionally, when productive collaboration and cooperation among employees are necessary for success, measuring and incentivizing team performance can help promote these qualities.