The screening is not optimized to find the best candidates, its just an arbitrary filter that will in the long term let some people that would be fundamental to

The screening is not optimized to find the best candidates, its just an arbitrary filter that will in the long term let some people that would be fundamental to the survival of the company out of it. Sometimes its good to accept that the uncertain things are uncertain. If i were them, i would find and train good "screeners", people with talent to spot talent and just let them do the job. Sometimes they will only have a hunch, giving their observations of things that escape most people of a particular candidate, and even without much to show of, they might be right. Later the top screener's would help the new ones to be better at their job, teaching their tricks. This is very subjective and personalized, and even if there might be some objective ways to train the screener's better, i think its just nuts trying to use objective tests to define a good hire. I bet with you that there are a lot of "human gold" out there that would only be detectable only when its too late for the company.