WPP in Crisis: Inside the Alleged Systematic Failure of a Marketing Giant

By Seb Joseph | August 17, 2026

The long-standing dominance of WPP, once the undisputed titan of the advertising world, is currently facing its most severe existential challenge. While market observers have noted a cooling in the agency holding company’s performance for some time, a torrent of newly surfaced testimony from a consolidated securities class action filed in the Southern District of New York has stripped away the veneer of corporate stability, exposing a culture of operational paralysis, technological obsolescence, and alleged ethical malpractice.

The litigation, brought on behalf of investors who purchased WPP American Depository Receipts between March 2024 and October 2025, features damning testimony from thirteen former high-ranking WPP executives. Their accounts, when viewed alongside the corroborating claims in a separate wrongful termination suit by former executive Richard Foster, paint a picture of a company struggling to reconcile its legacy business model with a rapidly digitizing global market.

The Framework of the Controversy

To understand the gravity of the current situation, one must distinguish between the two legal fronts currently battering the firm. The primary catalyst for the recent revelations is the securities class action naming former CEO Mark Read, CFO Joanne Wilson, and WPP Media global CEO Brian Lesser as defendants. This suit seeks to hold leadership accountable for allegedly misleading shareholders regarding the company’s internal health and growth potential.

Running in parallel—and providing critical evidentiary support—is the whistleblower lawsuit filed by Richard Foster. Foster alleges he was targeted and summarily dismissed for raising internal alarms regarding what he characterized as an improper "kickback" operation within the firm’s media investment arm. While WPP has moved to dismiss both suits, characterizing them as "baseless and without merit," the testimonies gathered for the securities case provide a granular, behind-the-scenes look at an organization that appears to have lost its way.

The Transformation That Never Was

Central to WPP’s public narrative over the past two years was the "GroupM simplification effort"—a high-stakes organizational overhaul designed to streamline operations and leverage economies of scale. However, the testimony of a former GroupM CFO reveals a starkly different reality.

As of April 2024, the CFO claimed there was zero measurable progress on the simplification mandate. Instead of achieving operational efficiency, the company focused on aggressive headcount reductions. The executive described the process as an "administrative nightmare," noting that the layoffs actually hampered the company’s ability to function, effectively pushing back any hope of organic growth by two to three years.

This sentiment was echoed by a former Project Management Office (PMO) lead, who joined in 2024 with the mandate to oversee the transition. Within weeks, the project lead realized the "simplification" was a phantom initiative. By March 2025, the team was gutted, and the enterprise resource planning (ERP) system intended to unify the group’s fractured finance systems was abandoned. In a final, desperate move, the project was handed to a low-level assistant with no authority to implement the necessary changes. "They just gave up," the executive recalled.

The Technological Deficit: Choreograph and "WPP Shut"

If organizational inertia was the internal rot, the failure of WPP’s data platform, Choreograph, was the external wound. The holding company positioned Choreograph as the antidote to competitors like Publicis, which had built formidable data assets through the acquisition of Epsilon.

According to a former Senior Vice President of Data and Technology at EssenceMediacom, WPP was trailing its rivals by at least five years. CMOs at major brands were reportedly aware of the gap. One executive recalled a conversation with the CMO of Signet Jewelers, who bluntly stated that WPP’s data capabilities were a primary concern, suggesting that the company’s inability to deliver on data was so severe it nearly disqualified them from even being considered for the account. Signet ultimately moved its business to Publicis in April 2023.

The launch of WPP Open—the company’s AI-powered operating system—was supposed to be the "reset" button. Instead, it became a source of internal ridicule. One former programmatic lead recounted a demo where the AI was asked to generate audience personas for a pop star’s young American fan base; the system returned results centered entirely on Japanese anime fans. Another executive, a former VP of global strategic partnerships, noted that the platform was marketed to clients as a collaborative, transparent dashboard, yet it remained a siloed internal tool that clients could not access. The cynical internal nickname for the project, they said, was "WPP Shut."

Chronology of Client Attrition

The disconnect between the boardroom’s promises and the operational reality led to a mass exodus of blue-chip clients. Throughout 2024 and 2025, a steady stream of marquee brands—including Coca-Cola, Mars, PayPal, TJX, Abbott Labs, and Paramount—terminated their relationships with WPP.

The insider testimony confirms that leadership was not oblivious to these losses. Former CEO Mark Read reportedly flew to Atlanta in a last-ditch effort to save the Coca-Cola account. Similarly, other members of the C-suite maintained direct, high-level contact with counterparts at Uber, recognizing that the account’s retention depended entirely on personal relationships rather than the firm’s actual performance.

According to the insiders, WPP’s COO, JiYoung Kim, sat in on every major pitch, and the company conducted rigorous post-mortems after every lost account. The evidence suggests that management was fully aware of why they were failing to retain business, yet continued to present a narrative of growth and transformation to the investment community.

The Sony Investigation: The "Black Box" of Rebates

Perhaps the most damaging revelation to emerge from the legal filings concerns Sony, WPP’s 15th-largest client. Following the filing of Richard Foster’s lawsuit, it was revealed that Sony had conducted an independent investigation into WPP’s rebate practices.

Sony’s findings, which included evidence from a criminal trial in China involving WPP executives, described a "broker model." In this scheme, WPP allegedly negotiated rebates directly with media vendors and then routed the funds through approximately 47 shell brokers that lacked actual operations. This process served to warehouse funds, converting them into WPP profit rather than passing them on to the client.

In China alone, Sony calculated that for every $460 million in media investment, only $110 million reached the client, while $350 million was retained by WPP. When confronted with these findings, WPP representatives reportedly admitted they had no answer, with one insider noting that the firm’s leadership preferred "not to know the answer."

Official Responses and Legal Strategy

WPP’s official stance remains one of aggressive defense. Regarding the amended complaint in the Foster case, the company issued a statement: "This amended complaint, filed just prior to the hearing, is an attempt to avoid its dismissal. Both complaints are baseless and without merit, and WPP will be re-filing an updated motion to dismiss. We have confidence that this matter will be resolved through due legal process."

Conversely, William A. Brewer III, counsel for Richard Foster, maintains that the issue is a fundamental failure of corporate ethics. "Richard Foster asked a question any agency should be prepared to answer: Are your profits derived from loyal service to your clients, or not? When Mr. Foster concluded that Defendants did not have honest answers to that question, he informed the CEO—and was summarily fired."

Implications for the Advertising Industry

The implications of this saga extend far beyond the courtroom. For the advertising holding company model, these revelations represent a potential turning point. If WPP, one of the world’s largest advertising conglomerates, is found to have systematically misled both its shareholders and its clients regarding its operational integrity and financial practices, the fallout could trigger a fundamental shift in how global brands manage their agency relationships.

The case highlights the dangers of prioritizing "holdco" structure over client-centric delivery. As the industry moves toward more transparent, data-driven, and AI-integrated models, the "black box" practices of the past appear increasingly unsustainable. Whether WPP can weather this storm remains to be seen, but the testimony provided by its own former leaders has ensured that the "transformation" the company once touted will now be defined by the very collapse they sought to avoid.