I'm sure Larry Page is a smart guy, and Page Rank was clever, but I'm not really sure there's any particular reason to believe he knows where any industry is moving. Schmidt could predict technology trends well, while Page seems to just throw acquisitions at a wall, see what sticks, then sunset anything that doesn't.
most of pagerank predates larry; several people were already looking at using centrality measures for page ranking before him. And I think Brin contributed a lot more of the math and theory than Page ever did.
Yeah, Sergey was better with numbers. Like that time when a PM was showing a new payment product on stage and he asked "was that your real credit card number?". She confirmed it was, to which he replied "Anyone could have memorized it... [starts reciting the digits, with the demo already at the next screen]".
