Glenn Hubbard, dean of the Columbia Business School, wants his students to make connections—and not just through networking. He blames the recent financial crisis on a failure by leaders to successfully see the big picture, focusing instead on their area of expertise. Not connecting the dots, he says, was disastrous. In Mr. Hubbard's view, business schools must prepare students with a broader education in order to thwart an economic meltdown. To that end, Columbia is deliberately weaving topics such as decision-making and ethics into classes across all disciplines.

Read more: Columbia's Business Dean on Disclosure, Leading, Ethics