Today, if the CEO thinks it's a good idea, it's done everywhere; if the CEO thinks it's a bad idea, it's done nowhere. We ought to be more agnostic and open to learning things that we didn't expect - and the only way to do that is to try things and be open-minded about how well they are working. And third, evidence-based management involves reading and learning - just like doctors do - and to do so not just in school but afterward, as well.

Your most important task as a leader is to teach people how to think and ask the right questions so that the world doesn't go to hell if you take a day off.

People need to be ready to have truly "global" careers. Just as companies now face world-wide competition, so, too, do people. Therefore, individuals need to get out in the world more - some large percentage of Americans don't even have a passport - and work in different countries.

While it is almost certainly true that leaders ought to eat last, the evidence on the ever-widening difference between CEO and average employee pay and the enormous severance packages leaders obtain even as front-line workers see their economic well-being eviscerated makes a mockery of the idea that leaders do anything other than take care of themselves.

I don't think eliminating the knowing-doing gap depends on the amount of knowledge around. It depends much more on people's attitudes and intentions - do they actually want to turn knowledge into action, or just go through the motions of acting as if they are busy or are accomplishing something.

Nothing comes without trade-offs. Do you want to spend time with people who like, or with people who might be useful to you? Do you really want to put in the long hours and constant attention required to be successful in your quest for power? Do you really want to be under the microscope on a daily basis, with people commenting on the car you drive, where you live, where you go on vacation, and so forth? There is no way to avoid the price of power. It's up to you to decide if it is worth it, and to change course when it isn't.

Great strategy, not executed, can't possibly have any effect on performance because it doesn't actually affect anything. It's like planning for a successful surgery to remove a tumor. If no one picks up the knife and actually operates effectively, the diseases will persist.