A lot of the news coverage is claiming that he had a role in recruiting specific people to CDG, and even names some of them (eg. http://www.bloomberg.com/news/articles/2015-01-29/sap-looks-... ), which would be more than just lending his support even if he's not really running the place. I certainly can't confirm if that's accurate though.

There seem to be two CDG branches: LA with Alex Warth (Jonathan Edwards also), and Bay Area with Bret Victor (Toby is also there). They are both doing really good work.