WPP Just Declared The Time-And-Materials Model Dead. What Every Agency Should Do Before The Market Flips

On 22 June 2026, on the opening day of Cannes Lions, WPP CEO Cindy Rose said something that should make every agency owner stop scrolling: "I think, maybe controversially, the time-and-materials model is dead." Her reasoning was simple and hard to argue with. In a world where AI does the work faster and cheaper, charging a client by the hour is "just not a model that's sustainable."

WPP is not just talking. It is moving to outcomes-based billing, where clients pay when agreed objectives are hit rather than for hours logged. Jaguar Land Rover, which appointed WPP as a global partner in May, is the first live example. Rose added a prediction that should concentrate the mind: "the market will flip pretty quickly."

This is not a forecast. It is a repricing.

It is tempting to file this under "interesting industry news" and move on. That would be a mistake. When the largest agency holding company on earth publicly declares that paying for hours is over, it does something concrete to your business whether you like it or not: it changes what your clients believe they should be paying for.

Clients do not need to read the trade press to feel this. The expectation moves through procurement conversations, through the assumptions a new marketing director brings to the table, through the benchmark a CFO uses when they review the agency line. The moment the category leader says "hours are dead," every client in the market quietly gains permission to ask why they are still paying for yours.

Why AI makes this inevitable

The time-and-materials model rests on a single assumption: that the hours are a fair proxy for the value. For decades they roughly were. A campaign took a certain number of people a certain number of weeks, and billing for that time was a reasonable way to price the outcome.

AI breaks the proxy. When a task that took a team three days now takes one person an afternoon, the hours collapse but the value to the client does not. If you keep billing for hours, your revenue falls in lockstep with your own efficiency gains - you are punished for getting faster. If you bill for outcomes, the efficiency becomes margin. The same forces that threaten the hourly agency reward the outcomes-based one.

This is the quiet trap inside the hourly model in an AI world: every productivity improvement you make is a pay cut you hand yourself, until a client notices the work takes less time and asks for the rate to come down too.

The uncomfortable question for recruitment and marketing agencies alike

It is easy to read this as a story about creative agencies and holding companies. It is not. A recruitment agency's placement fee, a marketing agency's monthly retainer, a consultancy's day rate - these are all variations of the same model. They assume the client is paying for the work it takes. Each one is exposed the moment AI makes that work take less time and effort.

The placement fee is particularly worth examining. It is priced as a percentage of salary, but it is justified by the work - the sourcing, the screening, the management of the process. When tools automate large parts of that work, the percentage starts to look like a charge for effort that no longer exists. The same logic Rose applied to creative hours applies directly to the recruitment fee.

What survives the flip

Outcomes-based pricing is only a threat if you have been selling effort. If you have been selling results, it is the best thing that has happened to your margin in years. The dividing line is whether you can point at a specific outcome and say, credibly, "this is what you are paying for, and the hours were never the point."

Agencies that thrive under outcomes billing

• They already measure the result their work produces - revenue influenced, qualified pipeline, hires that stayed, cost removed.
• They can separate the outcome from the activity in the client's mind, so the conversation is about value delivered, not hours spent.
• They have the confidence to tie a meaningful portion of their fee to a number, because they have the data to know they will hit it.

Agencies that struggle

• They bill for deliverables and time, and have never measured the downstream result.
• Their value proposition is effort and availability - "we manage this for you" - which AI is rapidly commoditising.
• They have no documented evidence of outcomes, so when a client asks them to put their fee on results, they cannot.

How to prepare before the market flips

1. Audit which of your services are tied to outcomes and which to hours

Go service by service. For each, ask: can I name the specific result this produces for the client, with a number? Where you can, you are ready for outcomes pricing. Where you cannot, you have found the work most exposed by Rose's announcement.

2. Start measuring outcomes now, even on hourly engagements

You cannot price on outcomes you do not measure. Begin tracking the downstream result of your work today - even if the contract is still hourly - so that when the conversation comes, you have a year of evidence rather than a guess.

3. Run a hybrid pilot

You do not have to flip the whole book at once. Pick one willing client and move a portion of the fee to an outcomes basis tied to a metric you are confident in. Use it to build the muscle and the case studies.

4. Reframe the pitch around the result

Stop leading with what you will do and how many hours it takes. Lead with the outcome the client will get. The agencies that win the next few years will be the ones whose proposals read like a promise of results, not a menu of activities.

The bottom line

Cindy Rose did the rest of the industry a favour by saying out loud what the economics already implied. The hourly model was built for a world where time was a fair proxy for value, and AI has ended that world. The flip she predicts is coming whether or not WPP leads it. The agencies that prepare - by measuring outcomes, repricing deliberately, and rebuilding the pitch around results - will treat it as the best margin opportunity of the decade. The ones that wait will have the new model imposed on them by a client who read the same headline.