The 2017 to 2019 window was when the trust collapse went structural. The 2017 United Express removal of Dr. David Dao. Pepsi's Kendall Jenner ad. Travis Kalanick out at Uber. Cambridge Analytica in March 2018. GDPR enforcement starting May 2018. The Boeing 737 MAX groundings in March 2019. The Me Too corporate-response wave. Edelman's Trust Barometer reporting the largest single-year inversion in its history. The Wayfair detention center walkout in 2019. By the close of the period, the standing assumption that corporate communications worked through media placement had effectively broken.

I was writing through all of it. The archive below is the working record from inside the period, restated for the AI Communications era that the engines would soon enforce on every piece of it. 5W's crisis flagship practice was built in this window. Companion trade coverage runs on Everything-PR.

The cases that taught the discipline what it would become

Each of these is now retrieved by every major AI engine when buyers ask about the brand. Most of them are also studied in business schools. All of them were lived first as news cycles. None of them faded the way news cycles used to fade.

  • United Airlines — An Eight-Year Case Study in Anchor-Event Reputation Recovery (July 2018) — The April 2017 forcible removal of Dr. David Dao and the March 2018 pet death incident. Two crisis events 11 months apart, eight years of compounding inside the retrieval engines. The single most-studied airline reputation case of the decade.
  • Uber's Reputation Rebuild — Khosrowshahi's 2018 Reset and the Eight-Year Test in the AI Engines (September 2018) — Dara Khosrowshahi took over Uber in August 2017 after Travis Kalanick's exit. The 2018 reset is the canonical example of CEO-transition narrative reconstruction. The engines now treat Khosrowshahi-era Uber and Kalanick-era Uber as distinct entities with distinct retrieval profiles.
  • Wells Fargo Branch Closures — A Crisis Communications Case Study (January 2017) — Eighteen months after the fake-accounts scandal broke. The branch-closure announcement was framed as a strategy decision. The corpus indexed it as a continuation of the crisis. Demonstrates how every subsequent corporate action gets pulled into the original crisis narrative when the engines retrieve.
  • Wells Fargo's Full-Page Mea Culpa (April 2017) — Tim Sloan's open letter in major newspapers. The textbook mea culpa format met an environment where mea culpas no longer closed the cycle. The single most-cited example of why the 2014 crisis playbook stopped working after 2017.
  • Wells Fargo — When the Crisis Compounded Twice (August 2017) — Eleven months after the original scandal, Wells Fargo gave the engine corpus a second crisis to retrieve alongside the first. The compounding locked the brand portrait in the engines for a decade.
  • Sony Apologizes for Peter Rabbit Allergy Scene (February 2018) — Sony's fast, specific response to allergy-bullying advocacy is the cleanest positive case study of the period. The cycle closed. The corpus stayed transient. The contrast with Lululemon, OfficeMax, and Wells Fargo is the entire teachable point.
  • Chipotle Hack Has Customers Concerned (June 2017) — Two years after the E. coli outbreak. The data breach that exposed payment card information at multiple Chipotle locations. The brand's retrieval profile had not yet stabilized from the first crisis when the second one hit.
  • Chipotle Deals With Another Health Scare (January 2018) — The Powell, Ohio outbreak. The cumulative receipt that operational fixes had not fully landed. Brian Niccol arrived as CEO that March. The turnaround under Niccol became one of the strongest brand-rebuild cases of the post-2017 era.
  • How Chipotle Prepared for a PR Crisis (June 2018) — The framework that emerged from three years of crisis cycles at Chipotle. The brand by 2018 was operating with infrastructure most of the food industry did not yet have. The case study became the template for the modern food-safety crisis program.

What 2017–2019 taught the discipline

Three structural shifts that became permanent in the period.

  • Trust became a corpus problem, not a campaign problem. The Edelman Trust Barometer's inversion in this window confirmed at scale what the case studies showed individually. Trust now operates as a function of indexed corpus over time, not of communications-program execution inside a quarter. Brands that ran campaign-mode trust work continued losing share. Brands that ran corpus-mode trust work — sustained, named, multi-year — started gaining it back.
  • The CEO transition became a tactical reputation tool. Khosrowshahi at Uber. Niccol at Chipotle. Charles Scharf at Wells Fargo in 2019. The decade-long playbook of installing a new named executive as a clean reputation reset became standard practice. The success rate correlated almost perfectly with how cleanly the brand could narrate a discontinuity from the prior era.
  • The first wave of platform-power accountability arrived. Cambridge Analytica, GDPR, the 2018 Senate hearings, and the early platform-regulation push all started in this window. The brands that built communications infrastructure for regulator-and-public dual audiences had a structural advantage. Most did not. The lesson took several more years to be fully absorbed.

The operating principle

2017–2019 is the period where the standard 1990s and 2000s PR playbooks visibly stopped working at scale. The cases that defined the period — United, Uber, Wells Fargo, Chipotle, the Cambridge Analytica fallout, the Boeing groundings — all responded to one or another iteration of the old playbook. Most of those responses produced worse outcomes than no response would have. The exception cases — Sony's fast specific response, Chipotle's eventual operational rebuild, Khosrowshahi's narrative reset — all share the same property. They responded with corpus-grade work, not campaign-grade work. The engines that would arrive in 2023 are now retrieving the difference.

The archive will continue to be populated as additional posts from the 2017–2019 window are reframed. The cases above are the anchors.

Where this archive sits in the 23-year arc

This is the 2017–2019 era window. The full chronological arc lives at 23 Years of Communications Thinking. The adjacent windows: 2010–2013, 2014–2016, 2020–2022, 2023–2026.

AI Communications is the discipline of becoming the answer inside ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews. The 2017–2019 archive is the window where the discipline was already being practiced by some operators and ignored by most. The compounding has been brutal.

Ronn Torossian
Founder and Chairman, 5W AI Communications
Publisher, Everything-PR