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04Precedent · how it went for them

The situation“A dependency has failed and I need a plan B by tomorrow.”

Leaders who made the same call — what each did, and how it went.

WorkedHalf-workedShouldn’t have been tried

Worked · Elsie Inglis, Scottish Women's Hospitals, 1914 onwards

At the outbreak of war in August 1914, Dr Elsie Inglis (a 50-year-old senior consultant in Edinburgh with thirty years of medical practice) offered the British War Office two fully equipped all-female hospital units of 100 beds each, funded by the National Union of Women's Suffrage Societies.

Worked · Corie Barry, Best Buy, March to April 2020

When Corie Barry became CEO of Best Buy in June 2019 (one of the youngest Fortune 100 CEOs in the country at the time), the retail model she inherited was built on a single assumption that had been settled for Best Buy's entire history: customers came into the store.

Worked · Muriel Siebert, New York Stock Exchange seat purchase, 1967

In 1967, Muriel Siebert was running her own securities-research practice on Wall Street and had decided to apply for membership of the New York Stock Exchange.

Worked · Lookery, 2008 to 2009

Lookery was an early advertising network built specifically for the Facebook application ecosystem, at a moment when Facebook was aggressively opening its platform to third-party developers.

Worked · Adena Friedman, Nasdaq pandemic split-teams operating model, March 2020

When COVID-19 began moving through New York in early March 2020, the operational dependency at risk for Nasdaq was not technical and not financial.

Half-worked · Stepan Pachikov, Evernote, 2008

In early 2008, Pachikov had decided to shut Evernote down.

Shouldn’t have been tried · Aaron Harris, Tutorspree, 2011 to 2013

Tutorspree built a marketplace for in-person tutors.