Many people in the world don't really like their jobs. And most organizations are not healthy. They are badly prepared for increasing complexity and changing environments. Most managers know that organizations are complex systems. But few understand what that means for the way organizations should be managed. Complexity thinking suggests that we should seek a diversity of conflicting perspectives. It explains that organizations need experimentation, not just adaptation. And it says that most innovation happens by stealing and tweaking existing ideas to fit a new context. Ultimately, what organizations need is a “management workout”. A number of simple practices that make employees happy and the organization healthy, and which satisfy the rules of complexity thinking.