I'm not sure how one follows the other. Anything launched in the past 100 days (such as Plus) would have had to have been in the works for months or years. This seems to be the folly of judging one man's impact on an organization of tens of thousands of people.

But shouldn't some credit be attributed to the top boss for getting the hurdles out of the way and letting people make decisions? Probably that is something he could have paved the way for to launch G+ in style.