If my house had a pest problem, I would need to hire an expert in pest-control. I need to do that without being an expert myself. How should anyone be able to hire someone with more experience than themselves, in your view? I've sometimes had to 'hire my own boss'.

Maybe the criteria for the problem was less "did they check these boxes" and more "could they be a collaborative mentor willing to work with even the junior members on the team" in the context of designing a system.