Most companies go looking for a paid ads agency before they have figured out what they actually need. They end up paying a monthly retainer to a team of six people, four of whom will never touch their account, and wonder why results are slow and communication feels like pulling teeth. This is not a knock on agencies. It is a structural mismatch.
Here is how I think about the decision — having worked inside agencies, inside companies, and now as a freelance performance marketing manager who does this full-time.
A paid ads agency sells you a process. They have onboarding decks, reporting templates, account structures they have refined over hundreds of clients, and junior staff who execute against that playbook. The playbook is often genuinely good. If your business is straightforward — standard funnel, established category, healthy margins — an agency can get things running reliably without much hand-holding.
What agencies are worse at: genuine strategic thinking on your specific account. The person who sold you the contract is rarely the one managing your campaigns. The person managing your campaigns is often working eight other accounts simultaneously. When something unusual happens — a sudden CPL spike, an attribution anomaly, a competitor changing the landscape — you want someone who knows your account deeply and can think about it. That person often does not exist inside the agency structure.
You are buying attention. A senior freelancer has chosen to work independently precisely because they want to do the work, not manage a team and sell retainers. When you hire one, you get the person you spoke to actually running your accounts, every day.
That makes a meaningful difference in complex or unusual situations. B2B SaaS with long sales cycles and offline conversion data. DTC brands where creative iteration is the main lever. Companies entering new markets. Performance marketing that has to work alongside a wider brand strategy. These are cases where a playbook-driven agency struggles and a senior individual contributor thrives.
Agencies often look cheaper on paper than they are in practice. A £3,000/month retainer sounds modest until you calculate what percentage of that is genuine senior time on your account versus overhead, account management, and margin. A freelance performance marketing manager at a higher day rate is often better value when you count the hours of expert attention you are actually purchasing.
Neither is universally cheaper. The honest answer depends on your spend level, account complexity, and how much strategic input you need versus pure execution.
If you need to run ads across five channels simultaneously and do not have an internal team, a full-service agency may genuinely be the right fit. If you need very fast scaling with a lot of executional bandwidth — creative production, landing page testing, feed management — agencies can deploy resources faster than a single freelancer.
If your account is genuinely simple — a single market, a stable product, relatively predictable seasonality — the agency playbook works fine and the premium you pay for a senior freelancer may not be worth it.
You are a scale-up that has outgrown basic acquisition but is not big enough to justify an internal hire. You have tried an agency and felt like a small fish in a big pond. You want someone who will push back on your assumptions, not just execute instructions. You have a complex attribution environment and need someone who can both run campaigns and think clearly about measurement. You need strategy and execution from the same person.
That is broadly the description of most of the work I take on. If it sounds like your situation, get in touch.