Roger Penske runs the most iconic and diverse motorsport team in American history, and since the last off-season he has also owned both IndyCar and the Indianapolis Motor Speedway. Most remarkably, though, is that he is a regular Joe human - yet a G.I. Joe hero on the race track and in the boardroom.
Penske will consider a matter from all angles before making a decision but can form that 360-degree view swifter than most and his subsequent decision is usually the right one. He gets involved at all levels in his team, yet knows when to observe and listen without micro-managing, because he's already installed managers who emulate his conscientious style. He is an entrepreneur extraordinaire and is single-minded in his pursuit of success, but in this instance 'single-minded' does not mean determination driven by blind optimism: Roger Penske is the ultimate realist.
As one prominent member of a rival team recently put it, "I can't say I know Roger except to nod or shake his hand on pitlane if his team's done well - or if his team has let us do well! So I'm basing my opinion purely off what I've heard about him, and what I've seen him do for the sport.