I'm told that this Hacker News community disfavors repeated posting of FAQ posts as comments, but this is a Frequently Asked Question (what's really the best way to hire good workers) and over the last year or two here on Hacker News I've put together a post with a lot of references to the best research. A recent posting of that here on HN
https://news.ycombinator.com/item?id=5227923
could help companies cure their idiotic hiring procedures. Read the FAQ if you haven't read it before. (Please let me know what you think of it, as I have been doing more research so that I can refine the FAQ and post it on my personal website.) There is no good reason for companies to do anything less than the best when setting up hiring procedures. Protect yourself by knowing what effective hiring procedures look like and how to find companies that use them.