The CEO of a $2.8 Billion Startup Explains Why He's a 'Terrible Manager'

By Jacquelyn Smith

Nobody's perfect. Even super-successful people like Stewart Butterfield, the cofounder of Flickr and chief executive of Slack, have weaknesses.

The 42-year-old Canadian-born entrepreneur recently told Adam Bryant of The New York Times what he's not good at when it comes to being a boss.