Expertise.com literally doesn't have separate listing pages for individual businesses, as far as I can tell. The linking structure is also really annoying. If I'm on the "legal experts for [State]" and there is a list of city links, then I expect these to be "legal experts in [City]", right? But NOPE, those are portal pages for ALL listings at that city, and I have to state again that I want a legal expert. That feels like a terrible user experience.
Even though I'm no expert in organic at all, I can see where the combination of a probably high bounce back rate and no listing pages would cause expertise.com to tank badly, regardless of what bestlawfirms.com might be doing right.