Why Didn’t Kodak or Polaroid Invent Instagram?

If any company was poised to understand the role of photography in life, and where the future would take it, the smart money must have been on the industry giants. Instead, they protected their legacy technology and went bankrupt.

The lesson, says Jon Acuff, author of Do Over, is that companies can hit a career ceiling just like individuals. According to Acuff, 70 percent of Americans don’t like their jobs and are prepared to do nothing about it. If your job “owns your weekday and haunts you...