Most EM interview prep fails the same way. You pick three strong stories, polish them until they're tight, run them past a friend, and walk in confident. Then somebody asks how you'd handle a high performer who's difficult to work with, and none of your three stories touch it. That isn't a depth problem. It's a coverage problem, and it's the thing that makes the EM loop different from every IC loop you've done. An IC loop samples from a narrow surface. Systems, code, a couple of behavioura...