> How do you know it works? If the company in question is growing its business and the employees and customers are happy, then whatever they are doing is worki

> How do you know it works? If the company in question is growing its business and the employees and customers are happy, then whatever they are doing is working, at least for now. I'm not sure there is a much better way to measure it. When I joined NVidia they had me through two phone screens (although they originally planned for three), followed by an onsite with seven different interviewers back to back on the same day. It wasn't fun, but it wasn't the end of the world either. When I was a hiring manager at Qualcomm we would typically do a phone screen followed by an onsite with maybe four one-hour interviews back to back and there was rarely any disagreement on whether the candidate made the cut or not, so I would argue that it was sufficient.