This leads me to think a good technical interview will identify people who strictly fail all or a large majority of the problems posed. Someone who you would w

This leads me to think a good technical interview will identify people who strictly fail all or a large majority of the problems posed. Someone who you would want to consider is someone who can reason and navigate most of the technical problems put forward - and it would certainly be great to have someone who can solve them all. I like the previous responder who said people skills/communication and time management are important. Regardless of if a person can solve a problem or not, I'd want them to identify things to discuss or be able to deliver a solution at the end of the allotted time for a question. I want deliverables. You can't move forward without feedback.