I think innovation as a discipline needs to go back and get rethought and revived. There are so many models to talk about innovation, there are so many typologies of innovation, and you have to find a good innovation metric that truly captures the innovation performance of a company.

PepsiCo did not have a woman in the senior ranks, nor a foreign-born person who was willing to think differently

There will never be a replacement for that ongoing physical contact. But I don't think blogging is meant to replace the face-to-face of friendships and meetings. Blogging is a way to keep in touch with a larger group of people on an ongoing basis, in a more efficient way.

In today's world of blogging and tweeting, conversation has become a bit more staccato. In many ways we're more efficient, but I think the amount of longer conversations that radiated more warmth may have gone down.