Crossing the Deathly Middle

Stagwell has put its own name on a global media network.

WPP is losing its CFO and creative network chief.

They are on opposite sides of the same valley, and only one of them chose to be there.

The valley is the expanding ‘deathly middle’ of the marketing services industry.

The valley has formed from a bifurcating market. One one side the scale shops to whom you can effectively outsource marketing, and on the other side of the valley are the specialists who chose skill over scale. The valley holds those who are neither. Some by choice, most by negligence.

Two companies stood at the edge of the same valley this fortnight. One is looking for a way out. The other has just announced it is going in.

Sixteen months ago, in June 2025, I wrote The Deathly Middle. It put WPP where it still is: "WPP has slipped to the deathly middle with few options to escape it." And it put Stagwell on the other side of the line, among the specialists: "The collections within Stagwell and BrandTech exemplify this." The piece called the middle a death zone, and said of it: "This is where the bloodbath will happen."

In April, after a results week in which Omnicom settled for efficiency and WPP's analyst call drew no questions, I followed up with The Cluttered Deathly Middle, writing "The middle is not emptying. It is filling up with large, expensive, and in several cases well-run organisations that have run out of road."

Nobody is walking into the death zone. It is filling because the death zone is walking out to meet them. Its edges are moving up the foothills on both sides, and the companies that look crowded inside it mostly haven't moved at all. The line has. That is what cluttered means: not an influx, an expansion. A valley that was a strip in 2025 is a plain in 2026, and the slopes on either side are shorter every quarter.

Which is why the two companies at its edge this fortnight are not in the same position, and should not be read as if they were.

One is in the foothills because the valley came up to meet it. The other is in the foothills because it has started walking down.

On Monday at Advertising Week New York, Stagwell launched Stagwell Media, a global media agency built on Assembly, operating in more than 50 markets, with Lenovo, DP World, Mastercard and P&G on the roster.

Liz Rutgersson, who runs the new agency, told The Drum that it is "far more than a rebrand" and that it "is not an umbrella brand." Crispin, GALE and Goodstuff stay outside it. Assembly will be retired as a brand over time, but she says nobody is being consolidated: "We'll be growing what we have on the foundation of Assembly." And her pitch to clients is, almost word for word, a claim that the middle is a market. Brands, she says, are caught between "the traditional agency model, which in some cases can be very complex and slow-moving, and on the other side, this fragmented landscape of specialist providers." Stagwell Media is built to be "a completely differentiated option" in "a gap in the market" between the two.

She is describing the valley floor and calling it the best-positioned ground in the industry. And she may be right, in one specific sense.

The Deathly Middle is lethal for companies that arrived there by shrinking: by losing the scale that justified their overhead and the depth that justified their price. Nothing in the thesis says it is lethal for a company that arrives by building, with a performance heritage, a technology layer of its own and a parent that is growing. If a media network can be assembled from specialist parts without inheriting a network's cost base, the middle is not a death zone for it. It is a moat the others fell into.

WPP is not on the integrated peak looking down. I have never placed it there, and the record does not allow it now. It is in the foothills on the far side of the valley, and it is tired.

On 23 September, Joanne Wilson told the board she was leaving to be Chief Financial Officer of Diageo. She has a twelve-month notice period and the board has "commenced a formal search." A CFO three years into a turnaround does not leave for a drinks company because the next three years look better than the last three. Eight days later, Jon Cook, global chief executive of VML and since February the head of all of WPP Creative, Ogilvy and Grey included, announced that after three decades he is leaving "to build something new." He stays until March 2027. Eric Campbell succeeds him. Cindy Rose's statement said VML and WPP Creative "are operating from positions of tremendous strength," which is the kind of sentence a company issues when the alternative sentence is unavailable.

Elevate28's own promise is a return to organic growth "during 2027." That is the honest timetable for a company with no spare energy: not a climb, a hold. And a hold is the one thing the geography does not permit, because the valley floor is rising. Every quarter the death zone widens, the foothills WPP is standing on get shorter, and the distance to the integrated peak, where Publicis sits alongside Accenture, gets longer.

WPP cannot cross the valley; it has neither the cash, nor the proprietary data layer, nor the enterprise technology to do it. And it cannot climb back up to where it was, because the ground it was standing on is now inside the zone.

Stagwell’s position is more interesting because it is partly earned and partly chosen.

Some of what Stagwell owns sits on the specialist peak and will stay there. Anomaly, 72andSunny, Code and Theory: shops that do one thing superlatively (and that I rate) and are hired for it, by Starbucks, by JPMorgan, by people who have never heard the parent's name.

But the company as a whole is not on the peak. A holding company with more than seventy agencies, a $3 billion revenue line, a marketing cloud, a political advocacy business and a stake in RealClearPolitics is a fragmented house of specialists and the house has been standing in the foothills deciding which way to walk.

On Monday it decided. Rutgersson arrived as Assembly's chief executive only last month, from Dentsu's iProspect and Merkle; the launch was built before she was in the chair, so she is the face of the decision rather than its architect. The Drum's summary is the one Stagwell would least like and I think is correct: the challenger network "has followed the likes of WPP in launching a media group bearing its own name."

It is also the third time Stagwell has put its name on media. Stagwell Media Network, in 2021, was a wrapper around seven agencies managing close to $5 billion, and it quietly became the Brand Performance Network. Stagwell Media Platform, in 2025, was a technology layer. Stagwell Media, in 2026, is the agency itself. A company does not name the same thing three times in five years because the naming is working. It does it because it has clients, P&G and Mastercard among them, who buy from networks, not from a house of boutiques, and because Assembly had been pitching against GroupM, Publicis Media and OMG since the ForwardPMX merger without the signpost that confers legitimacy.

A year ago, writing about Omnicom's $288 million of pre-merger spending, I set out the three things that actually get a company across: proprietary technology, integrated first-party data, and a transformation practice that puts it in the room before the budget is set. Everything else is speed, and speed is not a position. So walk Stagwell's pack against the list.

Technology. The Machine is Stagwell's own, launched in January; The Media Machine followed in June; Marketing Cloud passed $100 million of revenue on the first-quarter call. Packed.

A transformation practice. Code and Theory, and a Digital Transformation segment that was the fastest-growing line in the half-year accounts. Partly packed. It is a practice, not yet a position.

Media at global scale. As of Monday, packed, at least on paper: 2,300 people, 50 markets, four regional chief executives and two of the world's largest advertisers on the roster.

Data. This is the item that decides the crossing, and it is the one Stagwell does not own. The scale is real: John Kahan, Stagwell's chief AI officer and formerly Microsoft's chief data and analytics officer, told Adweek last month that the company's data sets span one billion touchpoints and 140 million US households. But the layer that makes that usable, the ontology that lets the models reason over it, is Palantir's Foundry, and Palantir is not a vendor. Adweek again: Stagwell "goes to clients alongside Palantir, and its sales drive usage of Foundry." Palantir is a sales channel. Stagwell is attempting the crossing on a rope that belongs to someone else.

Cash for the climb. Stagwell reported a net loss in each of the first two quarters of this year on revenue of roughly $1.5 billion for the half. It is growing. It is not generating the kind of cash that funds acquisitions large enough to change its shape, and the markets have priced it accordingly. Whatever is bought on the way across will be bought with paper or with debt.

Monday's release does not contain the word Palantir. Neither does the trade coverage of the launch. The connection I am about to draw is mine, built from Stagwell's own earlier statements, and you should weigh it as inference rather than announcement.

Here is the chain. In November 2025, when the Palantir partnership was announced, Stagwell said the platform was "already seeing client adoption of its early MVP model in the United States through Stagwell's leading media company Assembly," with roll-out to the rest of the network to follow on an opt-in basis. On the first-quarter call this year, Mark Penn described the Stagwell Agentic Targeting System as combining client and proprietary data with "the power of Palantir's targeting," and said the two companies were adding features that "take users from audience identification through to media placement and assessment on an agentic basis." Through to media placement. In June, launching The Media Machine, Penn tied it in the same sentence to "our agentic targeting system with Palantir." On Monday, Stagwell Media named The Media Machine as its "AI-native operating system."

So by the company's own account, the agency it has just put its name on is the operating vehicle for the Palantir-powered targeting stack. It simply chose not to say so on the day.

Eleven months ago, in Stagwell's Crusade, I asked whether the alignment with Palantir would cost the business. In March, when the results came in strong, I wrote: "The bet isn't retreating. It's compounding." Penn has since answered the question directly. "There was no concern about reputation risk," he told Adweek in September. "We believe in Palantir and what it's doing." Fair enough. That is a position, clearly held, and the business has grown through it.

The question is how cleanly the identity graph Palantir runs for governments is separated from the one that will populate a consumer brand's audience, has not been answered in public. It is a reasonable thing for a procurement director to ask before the first media plan is signed, and I would expect it to be asked.

So picture the slope. WPP is on it, facing uphill, with the valley floor rising behind it and no energy to climb.

Stagwell looks across the valley at the struggling WPP, with a pack that is four-fifths full and the rope held by a partner.

Some time in the next eighteen months they will pass each other, going in opposite directions, and each will believe the other has misread the map.

Brandflow is written by Justin Billingsley, who has spent his career on all three sides of the industry's table: senior client, global agency leader, technology founder. First published 8 October 2026 in the Brandflow newsletter on LinkedIn.