Amanager hears the part of a message that supports his agenda, but doesn't seem to notice evidence that contradicts his point of view. the manager is engaging in

SELECTIVE PERCEPTION                

Explanation:

Selective perception refers to the habit of not seeing and remembering stimuli more rapidly which causes emotional distress and challenges our previous views. For instance, a professor might have a favorite student, since in-group partiality biases them. The teacher avoids the bad performance the pupil has made.

In other phrases, a selective view refers to the process through which individuals portray in media images everything they want while ignoring dissenting opinions. Depending on the individual frame of reference, it is a broad concept to describe the actions that all people display that appear to "see stuff"