[nostrademons]

If you reject those 10-20 people at the phone screen stage, you end up with another problem that Google has been accused of: you overlook many qualified candidates who just had a bad day on their phone screen or drew a bad interviewer or got quizzed on questions that aren't their specialty.

It's a balancing act. Reject too many in phone screens, and you miss out on talent. Reject them at the interview stage, and you waste interviewer time. Accept them and put them on teams, and you drag down the level of the team and cause morale problems. Google's been accused of all of them, but in my experience, hiring sucks wherever you are, and they do the best they can given the data available.