"100% of my brain, 20% of my time": when to hire (or become) a fractional CMO

"You get 100% of my brain, but only pay for 20% of my time."

The client profile is specific: early-stage businesses moving toward growth, with small teams of smart mid-level marketers who lack strategic leadership — someone to set vision, own the twelve-month roadmap, and fight marketing's corner at board level. A full-time CMO makes no sense at that stage; four to eight hours a week of the right brain does. The value proposition is avoided waste: "I can save you weeks, months of dead ends. An hour of my time can save multiples of that."

Embedded, or don't bother

Matt's sharpest boundary separates the fractional CMO from the consultant — and both buyers and sellers should tattoo it somewhere visible. A fractional CMO is embedded: "I'm in the leadership meetings. I'm there on Monday setting priorities, checking in on Friday, writing the quarterly plan. A hit-and-run project is a consultant — that's a different thing." His floor is eight hours a week; below that the context runs out and so does the impact.

His most honest advice runs against his own interest: at day zero — founders, no marketing team — don't hire him. "It's poor use of your money. I'll end up writing your LinkedIn posts." Hire a strong T-shaped marketer first, and call the fractional leader when the team is two or three people.

The philosophy that ends the budget yo-yo

Matt's fix for the invest-then-panic cycle every lean marketer knows: stop relitigating beliefs. Attribution, he argues, "is fundamentally broken and only getting more broken." Instead, write the philosophy down once — five sentences, agreed with the founders, that shouldn't change quarter to quarter:

- Spend: what % of revenue goes to marketing. - Split: roughly how much long-term brand vs short-term activation (his reference is the Binet & Field 60/40 rule — set your own, but set it). - Channels: which win for us in the long run. - Creative: do we back distinctive creative as a weapon, or not. - Decisions: made on data plus judgement, on a set cadence — not the loudest opinion in the room.

"Once you get those beliefs down, park the debates and concentrate on excellent execution." His timing warning holds it together: most marketing is long-range — today's work shows up in six to twelve months, sometimes three years. The philosophy is what stops the panic in the gap.

Try this week: draft your five-sentence philosophy and get the founder or CEO to sign it — literally. And if you're weighing fractional help, check the embedded test (8+ hours, in the leadership meetings) before you sign.

Fractional work is almost entirely referral-driven, which makes a real marketing network the actual business development plan.

Sourced from recorded, on-the-record interviews on the South African Digital Marketing Podcast. Every practitioner quoted above is named in the text.