What a healthy agency relationship looks like at the 90-day mark

There's a particular kind of clarity that arrives around the three-month mark. Not from the results, which are still finding their shape, but from something quieter. The way a team handles a bad week. Whether they come to you with a problem or wait for you to find it yourself. Whether the relationship feels like a partnership or a retainer being serviced.

Ninety days is enough time to know.

This piece is about what to look for in those first three months, what to put in place early, and what a genuinely healthy agency relationship feels like when it's actually working.

1. Clear expectations from day one

The conversations that don't happen in the first week tend to become the arguments that happen in month four.

Good agency relationships are built on clarity, not assumption. That means scope of work written down, not just discussed over a kick-off call that everyone remembers differently. It means knowing who owns what on both sides, what success looks like at thirty days, sixty days, ninety, and what the process is when something goes sideways.

Turnaround times. Revision rounds. Escalation paths. These feel like admin at the start. Later, they're the difference between a relationship that runs smoothly and one that quietly accumulates resentment.

The detail that often gets skipped: what happens when things don't go to plan, and who picks up the phone first.

2. A brief that actually gets used

The brief is not a formality. It's the foundation everything else gets built on, and it shows almost immediately whether an agency has actually read it.

A good brief holds the business context, the audience, the goals, the constraints, the tone. It answers the questions an agency should be asking before they ask them. And a good agency, upon receiving it, asks more questions anyway.

The red flags come early. An agency that jumps straight to tactics without sitting with the brief long enough to understand the business is an agency working from assumptions. An agency that files the brief away and never references it again is an agency that has already moved on.

The brief should live in the room for the entire engagement. If it doesn't, something has gone missing.

3. KPIs that mean something

Vanity metrics are comfortable. They move in the right direction, they look good in a slide, and they rarely tell you anything useful about the health of the business.

The KPIs worth tracking are the ones with a direct line to outcomes: revenue, pipeline, cost per acquisition, and return on ad spend. They are agreed before the campaign goes live, not negotiated after the fact when the numbers don't land the way anyone hoped.

There's also a distinction worth making between leading and lagging indicators. Lagging indicators tell you what happened. Leading indicators tell you what's likely to happen next. A healthy reporting rhythm pays attention to both.

And when a campaign isn't performing, the first instinct should never be to increase the budget. The question is always why it isn't working. Budget is an accelerant. It makes good campaigns better and struggling ones more expensive.

We wrote about what a good reporting setup actually looks like in practice, including what metrics belong where and why. Here's the full piece.

4. Reporting that works for you

The copy-paste report is a particular kind of frustration. It takes hours to produce, arrives in your inbox already outdated, and requires a separate call to interpret. It is, in most cases, a performance of reporting rather than reporting itself.

What good looks like is simpler and more useful. A live dashboard, always current, that you can open on a Tuesday morning without asking anyone for an update. Performance against KPIs. What changed since last week. What's being tested. What's coming next.

Automation makes this possible and there's no good reason in 2025 not to have it. Tools like Looker Studio connect directly to your ad accounts and update in real time. When you visit the report, the data is already there. That's the baseline, not the ambition.

Direct access matters too. You shouldn't need to request your own numbers.

5. Accountability without micromanaging

There's a version of agency management that becomes its own full-time job. Chasing updates, sense-checking work, sitting in on calls that could have been an email. It's exhausting and it usually signals that something in the structure isn't working.

Accountability looks different. It's not about proximity to every decision. It's about knowing that when something goes wrong, the agency comes to you with a diagnosis rather than a delay. That the language in the room is "here's what we're changing and why, and here's when you'll see the impact," not "we'll look into it." We explored the lead quality and profitability question in more detail here, because volume and commercial outcome are rarely the same thing. Read more.

A good agency brings solutions. When performance dips, they arrive with a point of view on what's happening and what to do about it. They don't default to increasing the budget before the strategy has been properly reviewed. Budget is not a fix. It is, at best, a lever, and only once you understand what you're pulling it for.

6. Cadence that keeps things moving

The check-in that gets skipped is usually the one where something important gets missed.

Monthly check-ins keep the day-to-day on track. They don't need to be long, they just need to be consistent. The right people in the room, a clear agenda, and enough space to surface what isn't working before it becomes a problem.

Quarterly reviews are a different kind of conversation. Performance, yes, but also strategy. What's changing in the business. What's changing in the market. Whether the work still reflects where you're trying to go. Relationship health belongs in this conversation too, not as an afterthought but as a standing item.

Ad hoc communication fills the gaps. The question is knowing when to message, when to schedule a call, and when to simply let the agency work. Over-communication is its own kind of interference.

7. The 90-day gut check

By the time three months have passed, you should be able to answer a few things honestly.

• Do they understand your business? Not the surface version of it, but the actual shape of it: the customers, the pressure points, the things that don't show up in a brief.

• Are they proactive? Do they come to you with ideas, or only with answers to questions you've already asked?

• Are they honest when something isn't working? Or does the bad news arrive buried in positive framing, softened until it's barely recognisable?

• When performance is down, what's their first move? A thoughtful agency diagnoses before it prescribes. If the answer to a struggling campaign is always more budget, that's worth paying attention to. If you want to go deeper into where PPC budgets actually go and why most accounts underperform, this piece is worth a read.

• And the question underneath all of it: do you feel like a partner, or do you feel like a client number?

  If the answer isn't sitting right, that's useful information. Sometimes it means giving the relationship more time. Sometimes it means having a harder conversation. Knowing which is which is, in the end, what the ninety days are for.

A note to close

A good agency relationship doesn't just happen. It gets built, deliberately, in the first few months. The teams that get the most from their agencies aren't necessarily the ones with the biggest budgets. They're the ones who arrive prepared, communicate clearly, and know what they're actually looking for.

The ninety-day mark isn't a finish line. It's the first honest look at what you've built together, and whether it's worth building further.

If you're an in-house marketer figuring out how to navigate this relationship from your side of the table, this one's for you.

And if you're wondering whether your current setup is as healthy as it should be, that's a conversation we're always open to. Say hello.