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Building a marketing function from zero: a 90-day playbook.

A 90-day playbook for building a marketing function from zero — what to do in weeks 1–12, what to skip, and when to bring in a Fractional CMO to lead it.

Michael McShane Michael McShane, MBA
Co-founder · Business & Marketing Strategist

Building a marketing function from zero takes one quarter if you sequence it right. You spend the first month finding out what is true, the second month fixing what is broken, and the third month making it repeatable. You do not start by hiring. You do not start by buying tools. You start by getting honest about what you have.

Most owners I meet have done marketing the way they do their taxes — in bursts, under pressure, with no system underneath. A new website here. A paid-search experiment there. A logo redesign because a competitor got one. None of it connects. The 90-day job is to build the connective tissue so that effort compounds instead of evaporating.

What does a marketing function actually need to do?

A marketing function exists to produce predictable client demand and to measure whether it worked. That is the whole job. Everything else is a means to that end.

Strip away the language and there are three questions a working function answers every month. Where did our clients come from. What did it cost to get them. What do we do more of next month. If your current setup cannot answer those three questions, you do not have a marketing function. You have marketing activity, which is a different and more expensive thing.

For a professional services firm or a trades business, demand usually starts with search. Someone has a problem. They type it into Google. They pick from what they find. The function's job is to make sure your business is in that consideration set and to track what happens after the click. That is why we say search first, funnel aware, foundation always. The foundation is the part everyone skips and the part that decides whether the rest works.

What goes in the first 30 days?

The first 30 days are for discovery and audit — finding out what you have before you spend a dollar changing it. You measure, you do not move.

Start with a list. Every place a potential client could find you. Your website. Your Google Business Profile. Directory listings. Referral sources. Past advertising. Write down what each one produced last year, even if the answer is "no idea." The gaps in that list are the first finding.

Then run a foundation audit on the website. Does it load in under two seconds. Does Google know what each page is about. Are the pages that should rank actually indexed. Most small-business sites fail at least one of these and the owner has no idea, because the site looks fine on their own laptop. We wrote more about this sequencing in when you actually need a Fractional CMO (and when you don't) — the short version is that you fix the foundation before you fund the funnel.

The other first-month job is baselines. Pull twelve months of data. How many leads. From which channels. How many turned into clients. What a client is worth. If you do not know your numbers, you cannot tell whether month three was better than month zero. A San Diego dental practice we worked with thought their paid search was driving new patients. The data showed those patients were searching the practice by name — they were existing patients clicking an ad on the way to a site they already meant to visit. The ad spend was paying to reach people who were already coming. You only find that by looking.

By day 30 you should have a list of channels, an honest audit of the foundation, and a baseline you can measure against. No campaigns yet. Just the truth.

What goes in the next 30 days?

Days 31 to 60 are for positioning and fixing the foundation — making the business clear and making the site work before you drive any traffic to it. This is where most of the durable value gets built.

Positioning comes first because everything downstream depends on it. Who do you serve. What problem do you solve. Why you instead of the firm down the street. Write it in plain words a client would use, not the words you use with peers. A family-law firm that says "we handle complex high-net-worth divorce" will be found by people searching that. A firm that says "we do family law" competes with everyone and stands for nothing. Specific gets found. General gets ignored.

Then fix what the audit flagged. Slow pages. Missing service pages. Thin content on the pages that should rank. A Google Business Profile with no reviews and the wrong hours. These are not glamorous fixes. They are the ones that move the needle, because they remove the friction between a searcher and a phone call. This is the heart of ongoing SEO work — the unglamorous, repeated improvements that make a business easier to find than its competitors.

During this month you also set up tracking. Call tracking on the phone number. Form submissions tied to source. A simple dashboard you can read in five minutes. The goal is that by day 60, when a lead comes in, you know where it came from. That single capability separates a marketing function from marketing guesswork.

Do not launch paid campaigns yet. Sending traffic to a broken or unclear site is paying to confirm your problems. Fix the room before you invite people in.

What goes in the final 30 days?

Days 61 to 90 are for turning the fixed foundation into a repeatable system — a roadmap, a rhythm, and a report. The work stops being a project and starts being a function.

Now you build the roadmap. Twelve months of priorities, ranked by what produces clients soonest at lowest cost. Maybe that is more service pages targeting searches you do not yet rank for. Maybe it is a review-generation routine so your Google Business Profile climbs the local pack. Maybe it is one tightly targeted paid-search campaign, now that the site converts. The roadmap is sequenced, not a wish list. First things first.

This is also where you decide who owns the work. You have three options. Hire someone in-house, which is expensive and slow to find. Hand it to an agency, which often means activity without strategy. Or bring in fractional leadership to run the function and direct the doers. We covered the differences in Fractional CMO vs agency: the difference that matters, and the honest answer is that the right choice depends on your size and your budget, not on which sounds most impressive.

The last piece is the rhythm. A monthly report that answers the three questions from the start. Where clients came from, what they cost, what to do more of. A short standing meeting to review it and decide the next month's moves. That cadence is the function. Without it, you drift back to bursts under pressure within a quarter.

When we ran this sequence with McShanes Solicitors, the value was not a single campaign. It was that by the end, the firm could see which practice areas drove enquiries and could put effort where it paid. That visibility is what a marketing function buys you.

What does this cost and who runs it?

The cost depends on whether you buy a person, an agency, or fractional leadership, and the cheapest option is rarely the one that produces clients. Be clear-eyed about the math.

A full-time marketing director in a US market runs well over $120,000 a year plus benefits, and most small firms do not have enough work to keep one busy or enough budget to keep one paid. An agency charges $3,000 to $10,000 a month and tends to run tactics without owning the strategy — you get reports full of activity and no one connecting it to revenue. Fractional leadership sits between: senior direction a few days a month, at a fraction of a full-time salary, with the doing handled by specialists.

The right answer is whatever lets you answer the three questions and act on them. For a business under a few million in revenue, that is usually fractional leadership running the function with a small set of specialists doing the work. A Fractional CMO gives you the strategic seat without the full-time cost, and stays in the room to make sure the work ties back to clients won.

Where this breaks down

This playbook breaks down when the owner wants leads in week two. The foundation work in the first 60 days does not produce a spike — it produces durable demand that compounds. If you need cash this week, run a short paid-search campaign as a stopgap and build the function in parallel. Do not mistake the stopgap for the function. And if your business has no repeatable service to sell, no marketing function fixes that. That is a business-model problem, and we will tell you so rather than take your money.

Ninety days does not make you famous. It makes you findable, measurable, and repeatable. That is enough to start, and it is more than most of your competitors have. Foundations first. The rest follows.

— FAQs

Things readers usually ask.

Can I really build a marketing function in 90 days?
You can build the structure — the foundation, the positioning, the tracking, and the reporting rhythm — in 90 days. The demand it produces keeps growing after that, because search visibility compounds over months, not days.
Should I hire a full-time marketer or use fractional leadership?
For most businesses under a few million in revenue, fractional leadership is the better fit because you get senior strategy without a six-figure salary. A full-time hire only makes sense when you have enough consistent work to keep one busy and the budget to pay for it.
Why shouldn't I run paid ads in the first month?
Sending paid traffic to a slow or unclear site pays to confirm your problems rather than fix them. Fix the foundation and the conversion path first, then fund the traffic — your ad dollars go much further once the site actually works.
What's the single most important thing to set up first?
Tracking that tells you where each lead came from. Without it you cannot answer where clients come from, what they cost, or what to do more of — and answering those three questions is the entire job of a marketing function.
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