The skill of the interviewer in interviewing candidates should correlate just as strongly with everything else. How are you capturing that? I ask because our #1

The skill of the interviewer in interviewing candidates should correlate just as strongly with everything else. How are you capturing that? I ask because our #1 determinant after an at home code sample is the #3 thing you find are not predictive. Are they asking critical questions on what decisions and trade-offs were made? Their past projects, can they explain well the reasoning for choice of tools used? Can they talk about what types of improvements they wanted to see in the pipeline process of build-test-deploy? I'm just surprised that this question is singled out as "poor."