There is nothing like a concrete life plan to weigh you down. Because if you always have one eye on some future goal, you stop paying attention the the job at hand, miss opportunities that might arise, and stay fixedly on one path, even when a better, newer course might have opened up.

The one thing I have learned as a CEO is that leadership at various levels is vastly different. When I was leading a function or a business, there were certain demands and requirements to be a leader. As you move up the organization, the requirements for leading that organization don't grow vertically; they grow exponentially.

If you want to improve the organization, you have to improve yourself.

I don't think women can have it all. I just don't think so...My husband and I have been married for 34 years, and we have two daughters. And every day you have to make a decision about whether you are going to be a wife or a mother. In fact, many times during the day you have to make those decisions...We co-opted our families to help us. We plan our lives meticulously so we can be decent parents. But if you ask our daughters, I'm not sure they will say that I've been a good mom.

When I was president of the company, I said, 'Okay, I can do this - piece of cake.' Then when you are the CEO, the responsibilities multiply enormously because you worry about everything.

When I grew up there was no web, blogging or tweeting. In fact, where I grew up there was not even television! I met a lot of my friends in school and in college, and they are still my friends today.

Combating climate change is absolutely critical to the future of our company,Green Cooler customers, consumers-and our world. I believe all of us need to take action now. PepsiCo has already taken actions in our operations and throughout our supply chain to 'future- proof' our company-all of which deliver real cost savings, mitigate risk, protect our license to operate, and create resilience in our supply chain.