There's multiple of these for executives. We tried using one at my last company to find a Sales exec (I think they would have been c-level). I was part of the interviewing process and what we found out was that we absolutely needed the ideas and practices these candidates had and simultaneously couldn't afford them at even half their asking price. It was a real conundrum and the company more or less failed 18 months later after management decided "doing nothing" was the right decision.

It's common for VCs to do the same as "entrepreneur in residence"