Flew with lots of newhire FOs that had 200hrs when I was a brand new captain with only 1500TT in 2005. You figured out which FOs had a clue and which ones didn't relatively quickly.

But for a while it was the blind leading the blind and deaf. But we all survived it. The worst incident we had of a sub-2000hr total flight time between the two air crew was a crew that lost all their prop blades on one engine. They survived that one too and are both flying for major (AA and UAL) now.