The choice between an interim CMO vs agency, or between an interim CMO or full-time CMO, confuses many SME and public-sector organisations. When you hire marketing leadership, you are not just picking a person but an operating model. In this article we lay the three options out plainly, so you know what fits when.
Before you hire marketing leadership, it helps to pin down what is actually missing. Do you lack direction (strategy, positioning, priorities), execution (campaigns, content, advertising), or both? An interim CMO mainly fills the gap in direction and control. A marketing agency mainly fills the gap in execution and capacity. A full-time CMO does both, but only from a certain scale onwards.
Our rule of thumb: if the bottleneck is making choices and steering the team, you need leadership. If the bottleneck is hands and specialisms, you need execution power. Many disappointing engagements happen because an organisation hires an agency when it actually lacked direction, or the other way around.
An interim CMO takes over marketing leadership for a defined period, usually one to three days a week over six to eighteen months. This fits when there is a clear mandate: building or reshaping a department, leading a transformation, setting up a go-to-market, or bridging a vacancy without the shop grinding to a halt.
The advantage is seniority without a long-term commitment. You bring in someone who dares to make choices on day one, steers the team, aligns with the board and IT, and transfers knowledge instead of creating dependency. For an SME of 20 to 250 employees this is often the most cost-effective way to build marketing maturity fast, because you only pay for the time you need.
Mind the flip side: an interim CMO is temporary by definition. Without a solid exit plan and knowledge transfer, the house of cards collapses the moment the assignment ends. A good interim therefore builds for succession from day one, whether that is a full-time CMO, a marketing manager or a fully onboarded team.
An agency is strong in production and in specialist skills you do not want full-time in-house: SEO, performance advertising, design, web development, content production. You buy capacity and craftsmanship, scaled to the campaign or project.
The pitfall is that an agency rarely makes your internal choices. It optimises within the brief you hand over, but it does not set your positioning, priorities or organisational design. Without someone internal holding the reins, you often see a lot of activity but little direction: scattered campaigns without a coherent strategy. Agency and interim CMO are therefore not an either/or choice but often an and/and: the interim holds the reins, the agency delivers the execution.
A full-time CMO is the logical choice once marketing is structurally business-critical, the team is large enough to steer daily (think five marketers or more), and the role earns a full seat at the leadership table. Continuity, culture and long-term thinking are the payoff.
The trade-off is cost and time. An experienced CMO quickly costs 120,000 to 180,000 euro per year plus employer charges, and a good recruitment takes three to six months. For many SMEs that is a heavy, risky investment while it is still unclear which profile is truly needed. That is exactly when an interim CMO is a useful intermediate step: they shape the function and help define the right permanent profile, so you do not hire the wrong person.
Choose an interim CMO when you need direction, control and market value fast, when a transformation or go-to-market is ahead, or when you are bridging a vacancy. Choose a marketing agency when the strategy is clear and you mainly lack execution power and specialisms. Choose a full-time CMO when marketing is structurally critical, the team is large enough, and you want continuity at leadership level.
In practice you often combine them over time. A common, healthy path: start with an interim CMO who sets the strategy and steers an agency for execution, then hand over after twelve to eighteen months to a full-time CMO or an onboarded marketing manager. That way you never pay for more than you need at that moment.
At DWDA (since 1993) we work as interim CMO and partner in digital transformation for SMEs, multinationals and the public sector. We have no interest in endless hours: our goal is to leave your organisation more mature and more self-reliant. That is why we steer an agency where useful instead of pulling the work towards us, and why we build for succession from day one.
Unsure which form fits your situation? Take our free maturity scan: in a quarter of an hour you get a view of your marketing maturity across seven dimensions, including AI, plus a first sense of direction. Want to discuss the outcome? You can do so easily through our entry-level vouchers (fixed price, no surprises) or simply book an introductory call. We are happy to think along with you for half an hour, no strings, no sales pitch.