I'm generally not a fan of recruiters simply because the vast majority of them are sales people first, and tech people second (or often no technical experience at all). Compounded by the fact some people interview very badly but are good engineers and visa-vera.

Even if you have experienced engineers doing the screening process (separate from the company being applied for) I still think it would be challenging because theres no "correct" way for a team to work and companies are so vastly different.

It definitely is something to think about. If you do some up with something, let me know :)