EXCLUSIVE: Marc Andreessen Is Stunned That Yahoo Was Able To Get Someone So Talented As Marissa Mayer - Business Insider

A lot of execs at both Google and Microsoft are probably exceptionally anxious about what happens next at Yahoo

"So you think Mayer is a great hire. Why?
Three reasons:
She's a proven manager at scale. She knows how to run these companies at scale. There aren't that many product managers in our industry who can manage at scale.
She's a proven product leader.
She knows the Internet inside out.
A lot of people who may have had those first two may not have the third."

EXCLUSIVE: Marc Andreessen Is Stunned That Yahoo Was Able To Get Someone So Talented As Marissa Mayer - Business Insider