Business school graduates from the best schools earn large salaries and frequently rise to positions of great power. It would be nice if they used that power to truly make the world a better place - which entails more than just maximizing their own organization's profits and their own economic well-being.

One way to feel good about oneself is to not fail. The easiest way to not fail is to not try in the first place. So, I see lots of people give up before they start. That way they don't have to face uncomfortable failures. They can sort of "remain on the sideline while the game is going on." While this may make people feel good about themselves, it won't get them any power or success. As any successful salesperson will tell you, if you haven't been rejected, you haven't tried enough with enough people.

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.

I would give Obama a "C." He gets an "A" for understanding this country's profound problems in education, health care, infrastructure, and economic competitiveness, and for surrounding himself with extremely skilled and knowledgeable people who know what to do. He probably gets an "F," ironically, in his ability to sell these ideas to the American public and to be angry enough, conniving enough, and frankly mean enough to get them implemented and understood.

Lyndon Johnson (with Abraham Lincoln close behind). Johnson was able to get things done, to read other people, and to adjust his own approach accordingly. One of the reasons he has so fascinated biographer Robert Caro over the years is Johnson's consummate skill in acquiring and using influence.

Career success depends on people's educational credentials, their length of service (job tenure), unfortunately it is still the case on their race, gender, and similarity to those in power, and of course, on their political skills. Job performance matters, but less than most people think.

As many people know, our job market problems began long before the latest recession. We have faced literally decades with no substantive increase in median wages, and job growth, except in health and government jobs such as education, has been stagnant for a while. People are now expected to travel more and to work at odd hours to coordinate with people all over the world. Simply put, companies have prospered, but for the most part, people have not.