1) People lie. I found out one person had someone listening in and chatting the answers to them. 2) The interviews get progressively more technical. We do a no

1) People lie. I found out one person had someone listening in and chatting the answers to them. 2) The interviews get progressively more technical. We do a non-technical first round (some people don’t show up on time, aren’t great communicators, etc.), then have a technical interview about high level concepts followed by a technical test. 3) Efficiency. We can learn more from a 1hr coding challenge than a 1hr verbal interview. And it requires less involvement from the team.