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Jeffrey Sonnenfeld

Jeffrey Sonnenfeld is the Lester Crown Professor in Management Practice and Senior Associate Dean at Yale School of Management.

Ellen Kullman
Leadership
Another suicidal board? How DuPont’s directors failed Ellen Kullman
By Jeffrey SonnenfeldOctober 13, 2015
Donald Trump (center) with Jeffrey Sonnenfeld (left) and his Yale colleague Jacob Hacker (right) in Trump's office
Leadership
Exclusive: Donald Trump tells Yale’s Jeff Sonnenfeld why he should be President
By Jeffrey SonnenfeldSeptember 16, 2015
Blurred governance: Mylan’s illusions vs. BofA’s realities
Leadership
Blurred governance: Mylan’s illusions vs. BofA’s realities
By Jeffrey SonnenfeldSeptember 15, 2015
Republican Presidential Candidates Address 2015 Family Leadership Summit
Leadership
Why the ‘Dump Trump’ strategy is doomed
By Jeffrey SonnenfeldAugust 22, 2015
Carly Fiorina, 2016 Republican Presidentail candidate
Leadership
Carly Fiorina as a boss: The disappointing truth
By Jeffrey SonnenfeldAugust 14, 2015
Cisco CEO John Chambers at Fortune Brainstorm Tech 2014
Leadership
CEO exit schedules: A season to stay, a season to go
By Jeffrey SonnenfeldMay 6, 2015
Brian Williams unanchored: A path to career recovery
Leadership
Brian Williams unanchored: A path to career recovery
By Jeffrey SonnenfeldFebruary 13, 2015
McDonald’s deserves a break today
Leadership
McDonald’s deserves a break today
By Jeffrey SonnenfeldFebruary 9, 2015
power ego trip
Leadership
The hero complex: A common, curable leadership malady
By Jeffrey SonnenfeldFebruary 2, 2015
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Most Popular
Success
Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away fasterplaceholder alt text
By Preston ForeSeptember 20, 2026
Success
Meet a 71-year-old who retired as a radiologist and professor, and now runs a banana-skewer business: ‘I never want to retire. Why would you do that?’placeholder alt text
By Preston ForeSeptember 20, 2026
Success
Hilton received 12,000 Gen Z applications for just 72 internship spots—its CHRO says AI has made the hospitality gigs more competitiveplaceholder alt text
By Emma BurleighSeptember 20, 2026
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