Comment by smsm42

> you need a system to quantify how good they are

But do you? How catastrophical would it be if Google accidentally hired not the top 0.001% but instead somebody from top 0.01%? I mean, same people that build everything else around us and the world still didn't collapse yet? I get it, you have to have standards, and you don't want to waste time and money on somebody that can't pass fizzbuzz test. But once you've moved past that - do you need to obsess so hard on ranking and quantifying it? There are probably some positions in Google that require people to invert binary trees (speaking figuratively) day in and day out, but my decades of experience in the industry shows that most positions aren't like that. I've not worked for google but I'm pretty sure it's also this way there. If you hire smart and competent people, it's OK even if they don't reverse a binary tree here or there.