The challenge culture: why the most successful organizations run on pushback

The fundamental why: Joanna's question

Challenge starts with a spark: questioning the status quo

Leaders must model: Paul takes a stand

Overcoming challenge aversion: the difference between Dad, Socrates, and Blockbuster

Developing people for challenge: why Allen Sheppard kept a "light grip on the throat"

Setting the rules of engagement: how we launched K-cups

Ask me anything: sixty coffee chats and counting

Outsider input: bankers, media, students, and the Tom Hagen model

The personal nudge: jumping off cliffs when you're not really n the mood

The negative normative: lessons from the football pitch

Global expressions: Stroopwafels, Pork floss, and lager for breakfast

Overcommunicate: on blenders, strategy, and alligators

Cycles within cycles: freak-outs, slow laps, anticipation, and the Belichek reset

The social value of challenge

A checklist for creating a challenge culture.