One of the greatest misconceptions about Theodore Roosevelt - in his time and ours - is that he was impetuous.

Ronald Reagan was unusual in being an authentic personality. Unlike many professional actors - and politicians - he was much the same behind the curtain as in front.

When Americans decry our politicians, we must remember that ultimately, politicians reflect us. When we demand more than mediocrity - and the passing comforts it bestows - we will certainly attain it. One hopes and prays it doesn't take an historic crisis for us to demand and reward excellence in public service.

Often, in a given project team or network, one sees leadership roles shifting among various members at various times. Attempts to fit these into traditional views of "leader" and "follower" don't quite work. It's more like Twitter: the "leader" has "followers" - but the "followers" are empowered to alter the relationship unilaterally, and the "leader" must continually earn the consent of the "followers."

Theodore Roosevelt is a natural choice for leadership education. Along with many other observers, I believe he was among the greatest of leaders to serve as president.

Wal-Mart, with its legendary focus on customer value in terms of price, is innovating in sustainability. Now, we're beginning to see the mirror image, a convergence, as the not-for-profit sector is beginning to serve more effectively by applying private sector accountability and efficiencies to social needs. This reflects a rising recognition that to serve others best requires more than good intentions; it mandates a focus on real-world results. Bill Gates and Warren Buffett are among the most conspicuous advocates and representatives of this transformation.

The unprecedented transparency of our time is a making change by the day. Our era, with transparency and the spread of information, is decentralizing authority and power at a breakneck pace. Those who understand this can break away. Those who attempt to hold back may well be trampled.