A head of marketing is often treated as the person who will make marketing exist. In practice, the best senior hires usually scale a motion that has already shown signs of life. The timing matters because the role is expensive, slow to hire and hard to judge when the company has not yet decided what good looks like.
The signals you are ready
You are probably ready when the company can explain its buyer and proposition without rewriting both every week. At least one route to demand has produced enough evidence to deserve more investment. Sales and marketing can agree on what a qualified opportunity is. The CRM contains usable history rather than a trail of guesses.
There also needs to be a real leadership job. The new hire should be choosing where to place bets, building a team and improving a system, not personally writing every page, fixing every automation and inventing the reporting model from scratch.
The signals it is too early
It is too early when the founder expects one person to settle positioning, design the brand, generate pipeline, choose and configure the stack, produce content, manage agencies, report to the board and recruit the rest of the team. That is not a leadership role. It is six specialist jobs held together by hope.
Another warning sign is that nobody can say what the first six months should prove. Without a commercial baseline, the new head becomes easy to blame and difficult to support. Every result can be called too slow because no one agreed on the starting point.
Why the early hire is so expensive
The salary is only the visible cost. A senior search can take three to six months. Notice periods add more time. The first quarter often goes into diagnosis and hiring. By the time the company knows whether the person is right, a year of runway may have passed.
A strong executive can still fail in this situation. Running a mature function and building one from zero are different disciplines. The former rewards scale, delegation and optimisation. The latter demands direct work across positioning, channels, operations and data with very little support.
What to build first
Before the permanent hire, settle enough of the function that they can lead rather than excavate. That means a clear market position, a first channel with real evidence, a CRM structure sales will use, a reporting baseline and a written account of what has been tried.
Then write the role around the function that exists. The candidate can see what they are inheriting, the board can judge them against reality and the company is far less likely to hire the wrong profile for the wrong stage.
Questions founders ask
When should a startup hire its first marketing leader?+
Usually after the company has a clear buyer, a stable proposition and early evidence from at least one demand channel. The role should be ready to lead and scale, not create every foundational asset alone.
Can a CMO create the whole function from scratch?+
Some can, but it is a different skill from leading a mature team. If the role combines executive leadership with every hands-on build task, the scope is usually the problem.
How long before a head of marketing shows results?+
It depends on the starting point. A leader inheriting a working system can improve it quickly. A leader starting from zero may spend the first six months on diagnosis, hiring and foundations before commercial results are visible.