A fractional CMO:
senior leadership without the full-time hire.

A fractional CMO (fractional chief marketing officer) is one senior marketer who owns your marketing function's direction (strategy, budget, channel mix, what gets reported upward) on a part-time schedule. That's the same accountability a full-time CMO carries, just not full-time. An agency retainer buys execution against a brief someone else already wrote: campaigns run, content produced, ads managed. A fractional CMO is often the person who writes that brief and holds the agencies executing it accountable to it, rather than being one of the agencies.

It's agreed upfront and named in the proposal rather than left vague. Commonly it's a fixed number of days a week or a block of hours built around your standing leadership meetings, since presence in the room is most of the point. It isn't unlimited on-call availability at a fractional price, and it isn't a checked-in hour a month either. The schedule is specific enough that you know exactly what you're getting before you commit.

Yes, and it's a reasonable way to de-risk that decision. A fractional engagement lets you see the actual judgment in the room before committing to a six-figure salary and a permanent seat. Some clients use the fractional period explicitly to firm up the role definition they'll eventually hire full-time for. Nothing about the engagement is written to prevent that; there's no exclusivity clause blocking you from hiring the person or someone else once you're ready.

Fractional leadership is CMO-tier: one senior person owns the whole marketing function's direction and sits in the room where that direction gets decided. Extended specialist capacity is narrower: a senior performance marketer, content lead or brand strategist joins your existing team to cover one discipline that's outgrown whoever currently owns it, working inside your structure rather than directing it. Most teams know which one they need; if you don't, the intro call sorts it in ten minutes.

The same named person. A rotating cast is exactly what makes fractional leadership hard to trust, and it's the first thing to ask any fractional CMO agency about. Continuity is most of what you're paying for, since a marketing function's direction depends on one person holding the full context across quarters, not a rotation of people each holding a slice of it.

No fixed minimum term, though senior people can't be switched on and off overnight, so a dedicated leadership arrangement carries a notice period agreed in the proposal. That period is never open-ended, always written down before you sign. One honest caveat: a fractional CMO engaged for a handful of hours a month rarely has enough surface area to do the job properly, so if that's what a conversation reveals, we'll say so rather than take the smaller number.