The Death of the £15k Retainer (And What Replaces It)
I’ve built, scaled, and sold a marketing agency for over £10m. I’ve lived and breathed the retainer model. And I’m here to tell you it’s a broken, inefficient, and frankly, outdated way to deliver marketing services.
The £15,000-a-month retainer is the industry’s default setting. It’s a comfortable, predictable stream of revenue for agencies, and for clients, it feels like they’re buying a tangible block of time and expertise. But what are they actually buying? In my experience, not a lot.
Let's break down that £15k figure. A typical agency has to cover salaries for the account team, the specialists, the creatives. Then there are the overheads: the swanky office in Shoreditch, the posh coffee machine, the endless software subscriptions. By the time you’ve sliced away all the operational costs, the slice of the pie dedicated to actual, value-creating work is pitifully small.
We ran the numbers. For a typical £15k retainer, often less than £5,000 is spent on the activities that directly drive client results. The rest? It’s absorbed by the agency's own inefficiencies. It’s a model that rewards billing hours, not achieving outcomes. The incentive is to be slow, to be complex, to make the client feel dependent on the agency’s arcane processes. The more hours you rack up, the more you earn. It’s a direct conflict of interest with the client’s goals.
This isn't a theoretical critique. I saw this firsthand. We'd have clients paying us a hefty sum each month, and a huge chunk of that was just keeping the lights on. The work we did was good, but was it efficient? Was it the best possible use of that client's budget? Honestly, no. And that’s a hard thing to admit when you're the one cashing the cheques.
The AI X-Ray: Exposing the Inefficiencies
For years, this model has persisted because clients had no alternative. The workings of a marketing agency were a black box. But AI is changing that. It’s acting like an X-ray, exposing the bloated and inefficient structures that have been hidden for decades.
Clients can now see what’s possible when you remove the manual, repetitive, and frankly, low-value tasks that agencies have been charging a premium for. Why pay an junior account exec £100 an hour to pull data for a report when an AI can do it in seconds, for pennies? Why pay a content team a week to write 10 blog posts when a fine-tuned language model can generate a first draft of all of them in an hour?
This isn't about the AI being 'creative'. It's about it being brutally efficient at the 80% of marketing work that isn’t creative at all. It’s the report-pulling, the data analysis, the A/B testing, the email scheduling, the social media posting. All the grunt work that agencies have been happily charging for, is now being automated.
My Contrarian Take: It's Not About Cost, It's About Value
Now, the obvious conclusion to draw here is that AI will simply drive down the cost of marketing services. That clients will expect the same work, but for a fraction of the price. This is the narrative you'll hear from most of the so-called 'experts'. But I believe they are fundamentally wrong.