Hiring Guide

How to Hire a Marketing Consultant

Hiring the wrong consultant costs more than the fee. It costs the months you spend running their playbook instead of fixing the real problem. Here's how to vet one properly.

By me, Dave Scott, President of SAMG Inc. · 9 min read

Hiring the wrong marketing consultant is one of the most expensive mistakes an owner can make. Not because of the fee. Because of the months that get lost running the wrong playbook on the wrong problem. The fee gets refunded sometimes. The months don't.

Here's the framework I'd use if I were on the other side of the table, hiring a consultant for my own business.

Start with what you actually need

The Duke / Deloitte CMO Survey has shown for years that marketing spend keeps climbing while owner confidence in the return keeps slipping (The CMO Survey). Before you talk to anyone, write down what's bothering you in plain language. Not "we need a marketing strategy." Something like: "I'm spending $8,000 a month on ads and I can't tell what's working." Or: "Calls are up but we're not closing more jobs." Or: "Our website looks good but nobody calls from it."

That sentence is your diagnostic prompt. The right consultant will dig into it. The wrong one will pivot to a service pitch.

The first conversation tells you almost everything

In the first call, watch for these patterns:

Green flags

They ask more questions than they answer.
They want to see your numbers before recommending anything.
They push back on at least one thing you say. Politely, but firmly.
They name what they don't do and refer you elsewhere when appropriate.
They talk about your business more than they talk about themselves.

Red flags

A pitch deck before a real conversation.
Service packages and pricing tiers presented in the first 15 minutes.
Specific promises about leads, rankings, or conversions before they've seen the business.
Case studies that look like everyone else's: "we grew traffic 300%" with no link to revenue.
Talking about the team, the process, the methodology, the framework, before asking what's actually wrong.

The honest test

A good consultant will sometimes tell you that you don't need them. If you've never heard a consultant turn work down, you've probably never met a real one.

Questions to ask before signing

1. "How do you diagnose before recommending?"

Listen for a real process. Numbers reviewed, calls listened to, website examined, team interviewed, customer journey walked through. Vague answers about "discovery" or "audits" without specifics are a sign the work will be vague too.

2. "What will you refuse to work on?"

Everyone who's worked long enough has a list of things they won't touch. Industries, tactics, channels, deliverables. A consultant who works on anything for anyone has no convictions, which means their advice doesn't either.

3. "How do you measure the success of your own engagements?"

The answer should be concrete. Customer acquisition cost reduced. Revenue per channel improved. Wasted spend eliminated. If the metrics are about deliverables produced or hours worked, walk away.

4. "Will I work with you directly, or with your team?"

Many "consultants" are really agency owners who do the selling and then hand the work to junior staff. That's fine for execution work. It's not fine when you're paying for outside diagnosis. Diagnosis can't be delegated.

5. "What does the first 90 days look like?"

The answer should be: diagnose, prioritize, recommend, then start executing on the one or two things that matter most. If the answer is "we'll launch your campaign in week one," they're not consulting. They're producing.

How long to commit

Three to six months minimum for the first cycle. That window also lines up with what the Harvard Business Review has long documented about consulting engagements: meaningful change shows up after diagnosis, prescription, and at least one measurement cycle have all run their course (HBR: Consulting Is More Than Giving Advice). Diagnosis takes time. Prescriptions take time to play out. Anything shorter forces both sides to perform instead of actually solve. If the consultant pushes for a one-month trial, they're either underconfident or they're selling a product, not a partnership.

How to make the engagement work after you sign

Give them honest access. Numbers, calls, customer feedback, the bad reviews, the team's complaints. A consultant working with filtered information gives filtered answers.
Tell them what you've already tried and what didn't work. Save them from repeating your last three mistakes.
Push back when something doesn't make sense. A real consultant wants the argument. The argument is where the answer gets better.
Hold them accountable to the metrics you agreed on. Not impressions. Not posts. Customer acquisition cost, conversion rate, revenue per channel, wasted spend eliminated.

The shortcut

The fastest way to evaluate a marketing consultant is to ask: "Tell me about a client you turned away, and why." If they can't name one, they take everyone. If they take everyone, your business is just another row in their schedule.

Sources & further reading

External references cited in this article. Links open in a new tab.

Duke Fuqua School of Business / Deloitte. The CMO Survey (Survey, Ongoing).
Harvard Business Review. Consulting Is More Than Giving Advice (Article, 1982).
U.S. Small Business Administration. How to Find and Hire a Business Consultant (Guide, Ongoing).

Talk With Dave

Questions business owners ask me

What should I look for in a marketing consultant?

Look for someone who asks more questions than they answer in the first conversation. Look for proof they've worked inside operating businesses, not just inside agencies. Look for someone willing to tell you the marketing isn't the problem when it isn't. A consultant who agrees with everything is selling, not consulting.

What questions should I ask before hiring a marketing consultant?

Ask how they diagnose before they recommend. Ask what they refuse to work on and why. Ask how they measure their own results. Ask for an example of a client they turned away, and the reason. The answers tell you whether you're hiring a thinker or a vendor.

How long should I commit to a marketing consultant?

Long enough to diagnose, recommend, implement, and measure. Usually three to six months minimum for the first cycle. Avoid one-month trials. Diagnosis takes time, and nobody can prove value in 30 days against a problem that took years to build.

What are red flags when hiring a marketing consultant?

A pitch deck before a phone call. Service packages with fixed deliverables before diagnosis. Promises of leads, rankings, or conversion percentages in a specific timeframe. Talking about themselves more than about your business. Refusing to name what they will not do for you.

Want a straight read on your business?

Send your situation through the Marketing System Review. I read it personally and reply with a straight answer, not a sales pitch.