Candidates aren't defending a PHd. The interviewer is nowhere near competent enough for this. > The goal is to see if a candidate does have what the candidate

Candidates aren't defending a PHd. The interviewer is nowhere near competent enough for this. > The goal is to see if a candidate does have what the candidate herself claims to know. The process you are using does not tell you that. You will notice that your explanation is full of things that you expect, not based in an understanding of how reality actually works. And the result is, unsurprisingly, one where you do not understand the output.