I think this is a really interesting and fun read, I really like your writing style.
What I'm not entirely sure of is why you are looking for the next A16Z? What is the value of knowing who the next great VC firm is, unless you are able to invest in the firms next fund, which most readers I suspect are not.
I like that you didn't try to force a conclusion, just stated your methods, showed the data and what you'd gleaned from it.
I found the inclusion of T.Rowe Price to be an interesting one as they are a name that I've never come across in the VC world.
It might be interesting in your follow-up to look at what stage VCs invested in the unicorns, as many were late investments, as A16Z was in a few.
