John Mark: The Comeback Kid

We all love a good comeback story. In such tales, the young upstart rises like a meteor, fails big, then fights back against the odds to win the victory. Tech whiz Steve Jobs was like that. After producing the wildly popular Apple Macintosh, he tried to stage a coup against his CEO and was fired. But when he found his way back to Apple, he presided over the rise of the ubiquitous iPod, iPhone, and iPad—products that revolutionized the world.

Or take Henry Ford. Despite a promising start working for Thomas Edison, when Ford struck out on his own, his new car companies fizzled. Only…