Growth · The Spark
Agency or fractional CMO: two proximities, one team
Same operators, different proximity. When to run growth as an agency, when to embed a fractional CMO, and the hybrid most B2B teams actually need.
There is a false choice in the B2B services market. Agency or in-house. Outsource or hire. The interesting answer is neither. It is one team, two proximities, depending on where you are.
Agency proximity
You hold the brief. We hold the brand, content, and demand work. Senior operators on the work, weekly cadence, monthly business review.
Right for teams without a marketing leader. Wrong for teams that need someone in the forecast call.
Hybrid proximity
A fractional CMO inside the team, an operator group running the build behind. Strategy and execution from the same room.
Right for founders ready to lead the function. Wrong for teams who want one neck to hold without inside accountability.
Fractional CMO proximity
A senior marketer in your room. On the standup, in the forecast, owning the number. Hires alongside you. Coaches the bench.
Right for teams ready to grow the function. Wrong for teams who need agency-style scope flex.
How to choose
The decision is not about budget. It is about how close you need the operator to the team. The same people are doing the work in all three modes. The question is the seat.
The questions to ask before choosing
Do we have a marketing leader? If yes, the agency model fits because the leader holds the brief. If no, the fractional CMO model fits because someone needs to lead the function inside the team.
Do we need senior thinking on the work, or just good execution? If senior, the fractional CMO or hybrid is needed. If just execution, the agency model works.
Is the founder ready for a senior person to challenge them on the strategy? If yes, fractional CMO works. If no, agency works.
When to switch proximity (and when not to)
Switch from agency to hybrid when the founder is making every strategic call alone and it is becoming a bottleneck.
Switch from hybrid to fractional CMO when the team has grown enough that the senior leader needs to manage marketers, not just oversee them.
Do not switch when the only reason is that the engagement feels expensive. Cost is not the metric. Capacity in the engine is.
What changes for the team when proximity changes
Closer proximity means the team gets daily decisions made by the senior operator. Briefs sharpen. Hand-offs reduce. The forecast call has someone in it who can answer for the marketing number.
Looser proximity means the team gets a weekly cadence with a senior team. The work still ships. The decisions sit with the founder. That is fine when the founder has the bandwidth. It is the bottleneck when they do not.
Same operators, same standards, different seats. Choose the proximity, not the vendor.
Frequently asked
Questions buyers ask about this
What is the difference between an agency and a fractional CMO?
An agency runs the work for you; you hold the brief and own the strategy. A fractional CMO runs the function from inside the team; they sit on the standup, in the forecast, owning the number. Hybrid is a fractional CMO leading an agency-style team underneath.
When should I hire an agency vs a fractional CMO?
Agency if you have a marketing leader and need execution capacity. Fractional CMO if you need senior thinking inside the team, daily decisions made closer to the work, and someone in the forecast call. Hybrid if you have a founder ready to lead the function but no team underneath.
How do I decide which proximity I need?
Three questions: do we have a marketing leader, do we need senior thinking on the work or just execution, is the founder ready for a senior person to challenge them on strategy. The decision is about how close you need the operator to the team, not about budget.
When should I switch from one proximity to another?
Switch from agency to hybrid when the founder is making every strategic call alone and it is becoming a bottleneck. Switch from hybrid to fractional CMO when the team has grown enough that the leader needs to manage marketers, not just oversee them.
Working on a real engine? Start with a conversation.
Tell us where you are. We will tell you what we see and where we would start.