There is a quiet tension inside every paid media agency that nobody wants to talk about. The agency is paid to manage the account. The account only needs managing as long as it exists. The better the account performs, the more a client will spend, but also the less work there is to defend at the next review.
The result is a set of incentives that gently, often invisibly, push agencies toward activity instead of outcomes.
What The Incentive Actually Does
Agencies need to show work. If the retainer is €8000 a month, the client will at some point ask what they are getting for it. The easiest way to demonstrate value is through visible activity. Weekly reports. Strategy decks. Campaign restructures. Creative refreshes. Audience tests.
Notice what is missing from that list. Measurable business outcomes.
Activity is easy to show. Outcomes are harder to attribute. And when outcomes are bad, nobody wants to highlight them.
The Pattern I See In Audits
An account with a rich service history. Thick strategy documents. Detailed monthly reports. Quarterly reviews. Creative sprints. Testing roadmaps.
And the actual performance metrics have been flat for two years.
The agency is doing the things that agencies do. The client is paying for the things that agencies charge for. The account is not performing. Neither side wants to name it because both are complicit in the dynamic.
Why Performance-Based Retainers Do Not Fix This
Because they usually turn into something worse.
If the agency is paid a percentage of media spend, the incentive is to spend more, regardless of whether the marginal spend is efficient. If the agency is paid on revenue or conversions, there is a strong incentive to take credit for conversions that would have happened anyway. If the agency is paid on ROAS, the incentive is to optimize narrowly for the metric, often at the expense of long-term growth.
No pricing model fully resolves the tension. What matters more than the pricing model is the relationship.
What A Healthy Relationship Looks Like
The agency tells the client uncomfortable things. The client listens when they do. Budget decisions are made with the business in mind, not the retainer. Campaigns get paused when they should be paused, even when that means less billable work. Scope is renegotiated honestly when the work has changed.
This is rare. It is also what separates the agencies that last from the ones that rotate through clients every eighteen months.
The Client Side Of This
Clients also contribute to the problem. They hire agencies to make them feel safer, not to challenge them. They reward activity because activity is visible to their boss. They avoid hard conversations about what is actually working.
When a client says "I want an agency that just gets it done", what they often mean is "I want an agency that will not push me on the things I already avoid". That is an expensive preference.
The Questions Worth Asking
If you are a client: when did your agency last tell you something you did not want to hear? When did they recommend cutting spend instead of scaling it? When did they admit a test failed and what they learned from it?
If the answer is never, you are paying for reassurance, not performance.
If you are an agency: when did you last walk into a client meeting with a recommendation that would reduce your retainer? When did you push back on a brief because the thing being asked for was not going to work?
If the answer is never, you are selling service delivery, not expertise.
The best relationships on both sides have more friction than the bad ones. The friction is a feature, not a bug.
Sources
No external sources. All claims are from direct audit work and publicly cited frameworks (Byron Sharp, John Dawes / B2B Institute).