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01Produit et design1955–1975Langue de l’article: English
The Citroën DS (1955) had hydropneumatic suspension, a semi-automatic gearbox and an aerodynamic body. It was 20 years early. Citroën could not build enough
Lire le cas ↗02Produit et design2021–2023Langue de l’article: English
Clubhouse, the invite-only audio app, hit a $4 billion valuation in 2021 during lockdowns. When they eased, downloads fell ~80% and it laid off half its staff.
Lire le cas ↗03Finance et comptabilité2012–2017Langue de l’article: English
Australia's biggest bank wired its cash machines to credit deposits instantly and never reported 53,700 of them. AUSTRAC won a record A$700M penalty.
Lire le cas ↗04Marketing et marque1964–1994Langue de l’article: English
André Courrèges defined the Space Age look: miniskirts, goggles, vinyl. He locked the brand behind couture pricing and refused to license. The future moved on
Lire le cas ↗05Stratégie et direction1977-1998Langue de l’article: English
DEC was the world's #2 computer company with $14B and 140,000 employees. Its founder called the PC a 'toy' — nine years later it was sold for parts.
Lire le cas ↗06RH et management2020–2022Langue de l’article: English
Bob Chapek succeeded Bob Iger as Disney CEO in 2020; 2.75 years later, after a brutal earnings report and a falling stock, the board fired him and rehired Iger.
Lire le cas ↗07Publicité et RP1999–2006Langue de l’article: English
Nizan Guanaes sold DM9 to DDB in 1999. Three years later he walked out, founded Africa, and took the creative culture. DDB kept the name and the furniture.
Lire le cas ↗08Publicité et RP1994–2002Langue de l’article: English
In 1994, Havaianas was a commodity flip-flop for the poor. DPZ repositioned it as fashion. Sales tripled. It became Brazil's most famous advertising campaign.
Lire le cas ↗09RH et management2023–2025Langue de l’article: English
Weak appliance demand kept Electrolux cutting: 3,000 jobs and a SEK 2.5bn charge in 2023, then CEO Jonas Samuelson, nine years in, left in 2025.
Lire le cas ↗10RH et management2023Langue de l’article: English
Ericsson built for a 5G spending boom that never fully came. In February 2023 it cut 8,500 jobs, about 8% of its workforce, to save roughly $860 million.
Lire le cas ↗11RH et management2017–2018Langue de l’article: English
John Flannery led GE for about 14 months. The board replaced him with Danaher's Lawrence Culp the same day it wrote down $23 billion in its Power business.
Lire le cas ↗12Stratégie et direction2023Langue de l’article: English
The company famous for free gourmet meals laid off 12,000 people in one day. Employees found out they were fired only after losing access to their email.
Lire le cas ↗13Stratégie et direction1997–2005Langue de l’article: English
Havas, founded in 1835, was France's advertising crown jewel. It was split, sold to Vivendi, and reassembled. The brand survived; the culture did not
Lire le cas ↗14Finance et comptabilité2001–2008Langue de l’article: English
HBOS lent far faster than its deposits allowed and ignored years of regulator warnings. It collapsed into Lloyds in 2008 and needed a £20.5bn taxpayer rescue.
Lire le cas ↗15Publicité et RP2022Langue de l’article: English
H&M's sustainability claims were unclear and unsubstantiated, the Dutch regulator found. H&M agreed to adjust or drop them and donate €500,000 to a good cause.
Lire le cas ↗16RH et management2017–2020Langue de l’article: English
In 2011 HTC was America's top smartphone seller. After years of losses it sold about 2,000 designers, the team behind Google's Pixel, to Google for $1.1B.
Lire le cas ↗17Stratégie et direction2020Langue de l’article: English
After 118 years, JCPenney filed for Chapter 11 in May 2020. It had $4.2B in debt, 850 stores, and no rent money after the pandemic shut its doors.
Lire le cas ↗18RH et management2017Langue de l’article: English
Bali Padda, 61, became Lego's CEO in early 2017; eight months later Niels Christiansen, 51, replaced him. Lego said he was never meant to stay long — his age.
Lire le cas ↗19Marketing et marque2014Langue de l’article: English
Lego's Shell-branded sets sat in petrol stations in 26 countries, a £68m deal going back to the 1960s. A Greenpeace parody video with 5.9m views ended it.
Lire le cas ↗20Stratégie et directionJune 2025Langue de l’article: English
Nordic health food chain Life filed for bankruptcy in Finland and Sweden in June 2025 after rising costs and falling sales hit its 200+ store network.
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