Most first calls with a fractional CMO candidate turn into them pitching you. That's backwards. This is a hire that will sit inside your leadership team and make consequential decisions about your budget, so treat the conversation like the interview it actually is. Here are eight questions worth asking directly, and what to listen for in the answer.
Eight questions, three categories. Every one of them should get a specific answer, not a vibe.
Track record
1. "Can you name two clients and tell me what measurably changed while you worked with them?"
Not testimonials, not vague praise. A specific business, a specific change: pipeline grew, a channel got cut, a rebrand landed. A good answer is concrete and slightly technical. A weak one stays at the level of "we really transformed their marketing."
2. "Have you worked with a company at our stage and our business model before?"
Selling to enterprise buyers on 12-month cycles is a different problem than selling a $200-a-month SaaS tool on a self-serve motion. Someone with a strong track record in one doesn't automatically transfer to the other. This isn't disqualifying if the answer is no, but it should change how much you lean on their instincts versus their process.
Scope and commitment
3. "What's your exact minimum weekly hours, and can we put that in writing?"
Anyone who hedges here with "it varies" or "we'll see how it goes" is avoiding accountability before the engagement's even started. A real number, in the contract, is the baseline.
4. "How many other clients are you working with right now, and what's your total weekly hours across all of them?"
Having other clients is normal and often healthy, so this isn't about judging them for it. The point is sanity-checking whether the hours math actually adds up to a real, sustainable week, or whether you're client number six on a roster that's quietly overcommitted.
5. "What would you actually do in the first 30 days here?"
Listen for specifics tied to your business, not a generic playbook they'd give any company. If the answer sounds identical to what they'd say to a completely different type of business, that's a copy-paste pitch, not a diagnosis.
Accountability
6. "How will we measure whether this is working, and who decides?"
This should be a real conversation about metrics agreed up front, not a vague promise to "keep you posted." If they can't name what they'd be measured against before day one, that's a problem for both of you later.
7. "What happens if, after 90 days, this isn't working? What's the actual exit?"
A confident operator answers this without flinching, because they've thought about it. Notice periods, kill criteria, what a graceful off-ramp looks like. Someone who reacts defensively to being asked about failure is telling you something about how they'll handle it if it actually happens.
8. "Where's the line between what you do and what an agency does?"
This tests whether they actually understand their own role. A good answer draws a clear line: they set strategy and direct execution, an agency or in-house team does specialist work. A muddy answer suggests they haven't thought hard about their own scope, which is a bad sign in someone you're about to pay to think clearly for a living.
You wouldn't hire a full-time executive without asking hard questions and checking references. Don't lower the bar just because the contract is part-time. The seniority and the stakes are the same.
Two More Worth Asking
9. "How do you communicate, and how fast should I expect a response?"
Get specific here: which tools, what's the expected turnaround on a Slack message versus something urgent, and whether there's a backup contact if they're unreachable for a stretch. Mismatched expectations on responsiveness are one of the most common sources of friction in fractional relationships, and they're entirely avoidable if you ask upfront.
10. "What's your actual point of view on using AI in marketing execution?"
This isn't a trick question, but the answer tells you a lot. You want someone who's thought carefully about which repetitive work is safe to hand to AI tools and which decisions still need a human making the call, not someone who either dismisses AI entirely or leans on it as a substitute for real strategic thinking. A vague or overly enthusiastic answer either way is worth probing further.
How to Actually Run the Reference Check Call
Don't just ask for references, prepare for the call the same way you'd prepare for any other diligence conversation. Ask the reference what specifically changed in the business, what they'd want to see done differently next time, and whether they've stayed in touch since the engagement ended. A reference who's still recommending the person to other founders, unprompted, months or years later is a stronger signal than any glowing quote given in the moment.
Once you've asked all ten and you're ready to move forward, the full process from there, sourcing to signed contract, is laid out in how to hire a fractional CMO.