Diagnostic Insight
8 Signs You've Outgrown Your Google Ads Agency
An agency can do useful work and still no longer fit what your business needs. These are questions worth asking when the relationship is not delivering the commercial clarity you need.
How do you know when it's time to change Google Ads agency?
The clearest signs are: profit declining while ROAS stays flat, inability to explain incrementality, Performance Max treated as a black box, every recommendation being "increase budget," junior staff running your account, static reporting, no understanding of your margins, and feeling like you're managing your agency rather than being guided by them.
ROAS Is Stable but Profit Is Declining
Your agency reports consistent or improving ROAS, but your finance team sees shrinking contribution margin. The two numbers are diverging - and nobody's explaining why.
What This Really Means
Your agency is optimising for the wrong metric. They're chasing revenue efficiency, not commercial profitability. This disconnect widens every month.
You Can't Get a Straight Answer on Incrementality
Ask your agency what would happen if you cut spend by 20%. If they can't tell you - or worse, they panic - they don't understand your account's marginal economics.
What This Really Means
An agency that understands your account should be able to model the impact of budget changes. If they can't, they're managing inputs, not outcomes.
Performance Max Is a Black Box They Can't Open
Your agency runs PMax but can't tell you what percentage is brand, what's prospecting, or which asset groups are driving profit. 'It's just how PMax works' isn't an answer.
What This Really Means
PMax opacity is solvable. If your agency treats it as an unsolvable mystery, they lack the technical depth to manage it commercially.
Every Recommendation Is 'Increase Budget'
When the answer to every performance question is 'spend more,' you're working with an agency whose revenue model depends on your spend growing - not your profit growing.
What This Really Means
Percentage-of-spend agencies have a structural conflict of interest. Their growth depends on your budget expanding, regardless of whether it's commercially justified.
You've Never Met the Person Managing Your Account
The senior who pitched has disappeared. Your day-to-day contact is a junior who reads from a script. QBRs are the only time anyone senior looks at your account.
What This Really Means
You're paying for seniority but receiving junior execution. The strategic thinking that won your business isn't being applied to your campaigns.
Reporting Hasn't Changed in 12 Months
Same dashboard, same metrics, same narrative. No new hypotheses tested, no commercial questions explored. The account is on autopilot and the reporting proves it.
What This Really Means
Static reporting signals static thinking. A commercially engaged agency evolves its reporting as it learns more about your business economics.
They Don't Know Your Margins
Your agency has never asked for COGS data, return rates, or fulfilment costs. They optimise in a commercial vacuum - making decisions without understanding their P&L impact.
What This Really Means
Without margin data, every optimisation decision is a guess. An agency that doesn't ask for this data isn't equipped to manage profitability.
You Feel Like You're Managing Your Agency
You're the one flagging issues, asking questions, and pushing for change. Your agency responds to your energy, but never brings their own. The intellectual curiosity has gone.
What This Really Means
When the client becomes the strategist, the agency has become a platform operator. You're paying for strategic partnership but receiving task execution.
What Happens Next
Recognising these signals does not mean you need to switch immediately. Review where the account's decisions and reporting fall short, and give your agency a chance to address the gaps.
If a change is warranted, plan access, measurement and the handover before changing campaigns. The agency switching guide explains what to preserve and what to review.
How Many Apply to You?
If these signals are familiar, a conversation can help you decide which questions to put to your agency.
Frequently Asked Questions
How many of these signals need to be present before I should act?
Even two or three is a strong indicator. But the most telling signal is the feeling itself - if you're reading this page and nodding, the relationship has already shifted from partnership to maintenance.
What if my agency is good but just not specialist enough?
That's the most common situation we see. The agency isn't bad - they're generalists doing their best with ecommerce accounts that need specialist commercial thinking. There's no shame in that, but there is a cost.
How do I switch without losing momentum?
A structured handover with data preservation matters more than a hard cut. Our agency switching guide covers the questions to ask during the transition.
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