Shoreshthe drift report · all case files
Case file

Sergio Zyman

Wikipedia's first sentence called it “marketing executive”. Today it says “marketing executive from mexico best known as the marketer behind the failed launch of new coke and the success”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2015 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2015

Sergio Zyman (born July 30, 1945) is a Jewish marketing executive from Mexico best known as the marketer behind the failed launch of New Coke now regarded as one of the greatest marketing blunders of all time.1 A cover story in Fortune Magazine from May 1, 1995 referred to New Coke as the biggest marketing blunder since the launch of Ford 's Edsel . New Coke was a reformulation of the original Coca-Cola flavor. After significant consumer opposition the original flavor was reintroduced in just 77 days. As per Fortune Magazine' s 1995 cover story: " Zyman, then head of U.S. marketing, was coming off his enormously successful introduction of diet Coke when he was assigned day-to-day responsibility for top-secret Project Kansas in 1984. The zealous Mexican insisted that Coca-Cola (or Co-Coola, as he pronounces it) must act boldly to reverse its 20-year market-share decline vs. Zyman, a former Pepsi marketer, argued that the correct strategy was to replace 98-year-old Coke with a better-tasting cola, label it New Coke ," and blare the news--which is exactly what the company did one decade ago this April. Zyman's greatest error, which some attribute to ego, was that he and his team failed to present the option of keeping old Coke on the market." Zyman's work experience includes tenures with Coca-Cola , PepsiCo , and Procter & Gamble , and his own firm Zyman Group. He is also known for helping introduce Diet Coke in 1982 and conceiving Fruitopia in 1994. Since leaving the Coca-Cola Company Zyman launched a consulting firm called the Zyman Group that he sold to MDC Partners Inc., a Canadian advertising firm holding company, for around $60 million in April 2005. He was replaced there as Chairman by Scott Miller, formerly with McCann Erickson and the Sawyer/Miller Group and is no longer part of the Zyman Group's management team - though he is listed as the founder of the company on its website. The Zyman Group is no longer in business. He has written four books to date on his experiences in marketing and advertising the last one Renovate before you Innovate written with Armin Brott was published in 2004. Zyman is currently a paid professional public speaker , and can be booked. He attended executive programs at Harvard University and graduate schools in London, Paris and Jerusalem though his professional resume does not list a graduate degree.2

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 653114192.
Today
Wikipedia's first sentence called it “marketing executive”. Today it says “marketing executive from mexico best known as the marketer behind the failed launch of new coke and the success”. Read the current article and compare.
201020152020Oct '232025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

marketing executive

Now

marketing executive from mexico best known as the marketer behind the failed launch of new coke and the success

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

← back to the drift report