2. If a manager is assigned a single task, we expect high-quality evaluation information to drive out lesser quality evaluation information.

For example, a monitor that identified the precise input supplied to the task would render any noisy indicator of input superfluous. Yet when multiple tasks are assigned a single manager, difficulty assessing performance on one of the tasks may overshadow the ability or desire to use high-quality evaluation information on the other task.

Carefully explain how this might occur.