[woofie11]

As a point of fact, that's kinda what happens at big firms. No one has yet figured out a better model. There isn't a magic oracle to point you to perfect employees.

That's not really how it happens, though. You get people who are really good at whiteboard coding and little invert-a-tree type exercises, with no other skills. Most don't do this through interviewing over and over, but by practicing online. You end up with big companies full of people with nothing better to do with their time.

A lot of the people who interview over and over really have no idea what they're doing wrong. Employers don't give feedback, aside from "Thank you. We'll let you know. [ghost]," or at best "Thank you. We filled the role." A half-dozen interviews helps, but from then, it's rapidly diminishing returns.

I like startups, where you can do all sorts of side and back hiring channels, but none of those scale above maybe 100 people, and usually not past a dozen.