A few weeks ago, the BBC asked me to come in for a radio interview. They told me they wanted to talk about effective leadership — China had just elevated Xi Jinping to the role of Communist Party leader; General David Petraeus had stepped down from his post at the CIA a few days earlier; the BBC itself was wading through a leadership scandal of its own — but the conversation quickly veered, as these things often do, into a discussion about how individuals can keep large, complex, unwieldy organizations operating reliably and efficiently.