When an External Head of Growth Makes Sense — and When It Does Not
Most B2B companies don't need another agency or another tactic. But an external Head of Growth is a real decision with conditions — not a universal answer.
By Agustín Mc Cargo · Founder · Cardo Growth

In this guide
- The model provides senior judgement plus execution, fast.
- It fits when priorities and commercial ownership are the gap.
- It is the wrong call when the need is a specialist or a full-time hire.
Most B2B companies don't need another agency or another tactic. They need someone to set priorities, challenge weak assumptions and turn strategy into execution. That's what an external Head of Growth provides — but it is a real decision, not a universal answer.
When it makes sense
- You have demand but no predictable acquisition system.
- Marketing and sales are disconnected.
- You keep adding channels without a clear priority.
- You need senior commercial judgement faster than you can hire it.
When it does not
- You already have clear priorities and only need one specialist capability.
- The commercial leadership seat is genuinely a full-time, long-horizon role.
- The real gap is product or delivery, not go-to-market.
What it is — and isn't
External Head of Growth describes the level at which Cardo operates: strategic judgement plus hands-on execution across positioning, acquisition and conversion. It does not mean owning your product, engineering or retention. The scope stays commercial.
Not sure which layer is limiting growth?
Use the seven-question Growth Diagnostic to identify where deeper investigation may be required.
Take the 3-minute Growth DiagnosticTurn the diagnosis into a decision.
Book a 30-minute strategy call to discuss the commercial context, clarify the most likely requirement and determine whether Cardo should be involved.
About the author
Agustín Mc Cargo
Founder · Cardo Growth
Agustín Mc Cargo is the founder and lead operator behind Cardo Growth. He combines positioning, website strategy, outbound and commercial prioritisation to help B2B companies identify what to fix, build or activate next — and remains involved through execution.
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