True story. Rather than speed, I'd say independence is the goal. Warren & Charlie (BRK) have proven that this model works - purchase great companies, then let them continue to do their thing (albeit with more resources). All roads report up, but Dairy Queen doesn't wind up run by the same person as GEICO on the executive level.

So long as Sergey and Larry (& Co.) keep from micro-managing, I think this structure will be enormously beneficial. I can't see how someone running Google's web properties would be able to move quickly when also having a hands-on responsibility for developing a self-driving car and a glucose-sensing contact lens.