I was thinking on this and thought I should start a company that:

a. Pre-screens candidates on off-hours since they are likely already employed with a focus on keeping it brief out of respect for their time. b. Similarly match interviews at off-hours and perhaps moderate them to also not waste anybody's time.

I am sure there are many people that would not like this but if hiring is difficult and they want to make it rigorous I wonder if this could fit a niche. I personally am more than happy to go to an interview after work or on the weekend at a coffee shop so it doesn't cut into my job hours.