Answer:
360 Degree feedback or Forced Choice feedback
Explanation:
Peter could have had and Forced Choice evaluation which consists of having statements about him be laid out in sequence with a minus or positive sign indicating that he has it or not. For example, it could be as follows:
Work well with others -
Is individualistic +
Steals sales +
Offers help to teammates –
That kind of feedback has input from team members and bosses, which could indicate resentment.
However, is more common to use the 360 feedback, where Peter receives direct feedback from everywhere that we work with, such as team members, bosses, clients, suppliers amongst others. As he receives multiple feedback, if those agree in negative points, he could be feeling (rightfully or not) resentful and ganged up.