I'm not a recruiter, but I have a startup for matching candidates and jobs on criteria other than what appears on resumes and LinkedIn, but it's hard to get much candidate volume. Even if (a huge "if") I'm right, and this is a much better way to match, it doesn't mean the world will change form what's "working" (or at least familiar) and adapt a new approach. Internal recruiters are often extremely busy and lots of new startups do a nice job of streamlining their work.