Remember: if you do something that completely eliminates bad hires, it probably eliminated some good ones too. Of course, lots of people wave this away by saying bad hires are more expensive than bad rejections. OK- but how much more expensive? And does this practice make sense in light of that figure?

Not to say you shouldn't do this but it's very important to remember a lot of these kind of things when it comes to recruiting involve tradeoffs and you rarely get an unalloyed good.