Yeah, I too can find no publicly available org chart. I was careful to restrict myself to public information in that comment (except, I guess, "engineering is not a top-level division").

Several easy searches, like google.com/search?q=google+management or "google svp", lead to this page: http://www.google.com/about/company/facts/management/

You also get some media reports from 2011, which discuss several key players from that era.

I admit that doesn't tell you about "key divisional leads", but it does give you a list of who Google thinks is worth publishing about.

As for Ben Evans's tweet, he just made some random shit up. Again, 3/4 of the people he mentions as being Indian are NOT INDIAN.