A helicopter crashed in South Africa when the wrong control lever was pushed - not by the pilot, but by a penguin sitting right next to him. The "unsecured" penguin was sitting in a cardboard box ...

Simons, R. Levers of Control: How Managers Use Innovative Control Systems to Drive Strategic Renewal. Boston: Harvard Business School Press, 1995.

Mechanical systems all involve an input, process and produce an output. There are three different types of levers. They are chosen for their ability to produce the most mechanical advantage for a ...

A pilot, a passenger, and a penguin are lucky to be alive after the unsecured penguin gained control of the pitch lever, causing the helicopter to crash in a freak accident. This week, the South ...

Simons, R. "How New Top Managers Use Control Systems as Levers of Strategic Renewal." Strategic Management Journal 15, no. 3 (March 1994): 169–189.