"Hire anyone with decent standardized test scores," would be my baseline after managing a large, technical support callcenter where many new hires were simply not able to learn the (imho fairly rudimentary) modem troubleshooting steps after weeks and months of on-the-job training and support. The people who seemed the sharpest in the first two weeks of training usually excelled, most others didn't. Some were simply u…
In short, throw people out for almost any reason you want, and HN will defend your right to do so. But suggest that we could ever choose employees based on measures of "intelligence" or academic performance, and you are obviously doing something horrible and nobody should see your post.
There's at least one good thing about standardized testing: at least it's standardized and objective rather than being based on vague emotional criteria - how well you can con the interviewers, or whether they think you're just like them, or whether you present social proof that you convinced sufficiently many other companies in the past, or whether you are literally a friend of an employee.