The one thing I have learned as a CEO is that leadership at various levels is vastly different. As you move up the organization, the requirements for leading that organization don't grow vertically; they grow exponentially.

Companies the size of PepsiCo is like running a little republic, there is no question about it. The only difference is that I don't have to worry about the media hounding me every day, on every word that I say. I have a board of directors that runs the country in the interest of the stake holders.

If the head man in a company is not working 12 hours a day, doing things, taking risks, but also standing with his people in the trenches at the most difficult of times, then the company loses something.

As chairman, I commit to keeping Business Roundtable CEOs at the forefront of constructive public policy debates as we pursue an agenda of greater growth and opportunity for all Americans.

If you fast-forward through the years, there was a period of time when there was too much debate inside the company about the significance of e-commerce, there were leaders who believed it would never be any bigger than the catalog business, there were leaders that believed it would never be profitable.

Just because you are CEO, don't think you have landed. You must continually increase your learning, the way you think, and the way you approach the organization. I've never forgotten that.