Lesson 10: Assessing External Candidates Class Discussion. What roles do internal and external biases play in the hiring, promotion, and termination processes? Have you seen any examples of internal and external biases at work that you can share? How do you think employers can minimize or even eliminate these types of biases throughout their staffing systems? Please try to limit your post to no more than 250 or so words to focus on your core ideas and keep the discussion manageable