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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.

How Wells Fargo’s CEO Could Have Avoided His Senate Belly Flop
LeadershipHow Wells Fargo’s CEO Could Have Avoided His Senate Belly Flop
By Jeffrey SonnenfeldSeptember 23, 2016
U.K. Office For Google Inc
LeadershipSilicon Valley’s Peter Pan Syndrome vs. the Aging of Aquarius
By Jeffrey SonnenfeldJuly 10, 2016
How Viacom Could Have Avoided Its ‘Game of Thrones’ Leadership Saga
LeadershipHow Viacom Could Have Avoided Its ‘Game of Thrones’ Leadership Saga
By Jeffrey SonnenfeldMay 26, 2016
Mylan Buys Abbott Laboratories Generic Drug Business For $5.3 Billion
LeadershipMylan, Valeant and Theranos: What the Heck, Biotech?
By Jeffrey SonnenfeldNovember 13, 2015
Ellen Kullman
LeadershipAnother 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
LeadershipExclusive: 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
LeadershipBlurred governance: Mylan’s illusions vs. BofA’s realities
By Jeffrey SonnenfeldSeptember 15, 2015
Republican Presidential Candidates Address 2015 Family Leadership Summit
LeadershipWhy the ‘Dump Trump’ strategy is doomed
By Jeffrey SonnenfeldAugust 22, 2015
Carly Fiorina, 2016 Republican Presidentail candidate
LeadershipCarly Fiorina as a boss: The disappointing truth
By Jeffrey SonnenfeldAugust 14, 2015
Cisco CEO John Chambers at Fortune Brainstorm Tech 2014
LeadershipCEO exit schedules: A season to stay, a season to go
By Jeffrey SonnenfeldMay 6, 2015
Brian Williams unanchored: A path to career recovery
LeadershipBrian Williams unanchored: A path to career recovery
By Jeffrey SonnenfeldFebruary 13, 2015
McDonald’s deserves a break today
LeadershipMcDonald’s deserves a break today
By Jeffrey SonnenfeldFebruary 9, 2015
power ego trip
LeadershipThe hero complex: A common, curable leadership malady
By Jeffrey SonnenfeldFebruary 2, 2015
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Most Popular
Environment
Jeff Bezos pledged $10 billion for climate change. With the 2030 clock ticking, his wife, Lauren Sánchez Bezos, is leading the charge to spend itplaceholder alt text
By Sydney LakeJune 19, 2026
Health
'I literally was crying last night because I’m nervous about what I’m going to find out': a record 51% of Americans aren't 'cost secure' on healthplaceholder alt text
By Ali Swenson, Amelia Thomson-Deveaux and The Associated PressJune 20, 2026
Success
Anne Hathaway says she was spammed with ChatGPT-written thank you notes after hiring for a recent role: ‘Nobody on that list gets that job’placeholder alt text
By Orianna Rosa RoyleJune 18, 2026
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