I agree, although I think "top of the funnel" issues are important too. I've seen too many examples of poor interviewing process, too many bad hires made, and t

I agree, although I think "top of the funnel" issues are important too. I've seen too many examples of poor interviewing process, too many bad hires made, and too many good hires passed over to not put most of the onus on the middle of the funnel. Most interviewers are just not good at understanding the fragility of the process, or in having sufficient empathy to understand the difficulty of getting good data on a candidate. The worst part is that because bad hires tend to be let go eventually and passed over good client don't even register on the radar the whole system is heavily geared toward inadvertent confirmation bias.