In general good people will be able to identify good people (colloquially: game recognizes game). And good people will know they are being interviewed by someon

In general good people will be able to identify good people (colloquially: game recognizes game). And good people will know they are being interviewed by someone who is not so good, and they won't want to join. A hires A. Additionally, people who are not so good tend to be threatened by good people. So they will rather hire someone that won't threaten or "find them out". B hires C.