Same here. I feel I have vastly more control of my work performance over the course of 30 days than I have control of the assessment of 6 interviewers after seeing me for 30 minutes.

In other words, I think there is far more than 50% chance that things work out after 30 days and far less than 50% chance that I impress 6 interviewers.

Right, then maybe it would self select out those that can't do the job.

Interesting idea. If you fire fast enough it may not actually cost that much more money to a business to hire a bit more as long as you fire the bad ones fast.