Fractional CPO vs VP Product: Which Do You Need?

A fractional CPO is a part-time, senior strategic hire who sets direction, validates the roadmap and often delivers hands-on for one to two days a week, typically costing £4,000-£10,000 a month. A VP Product is a full-time, execution-focused hire who runs a team of PMs against an existing strategy, typically costing £130,000-£170,000 base in the UK. The short version: if you don't yet have a validated strategy or a team to manage, you need a fractional CPO first.

Founders often conflate the two because both titles suggest seniority. The actual difference is about scope of ownership and time commitment, not competence.

What a fractional CPO owns

Strategic direction: what the product should be, for whom, and why now. This includes market positioning, pricing philosophy and the top-line roadmap that ties features to business outcomes. A fractional CPO typically reports to the founder or CEO directly, and part of the job is helping the founder think, not just executing their instructions.

Because they're part-time, fractional CPOs work best when the company doesn't yet have a large product team to run — usually pre-seed to early Series A, with zero to two PMs.

What a VP Product owns

Execution against an existing strategy: managing a team of PMs, running the delivery cadence across multiple product lines, owning sprint-level prioritisation, and being the full-time escalation point for product decisions. A VP Product typically reports into a CPO or directly into the CEO once the company doesn't have a CPO yet, and is expected to be in the building (or on video) every day.

This role assumes the hard strategic questions — who we serve, what our wedge is — are largely answered. A VP Product who inherits an unvalidated strategy ends up doing fractional-CPO-shaped work anyway, just without the fractional flexibility or cost.

The cost comparison

A UK VP Product costs £130,000-£170,000 base, rising to roughly £160,000-£210,000 all-in with NI, pension and recruitment fees, plus meaningful equity (often 0.3-1%). A fractional CPO at two days a week costs around £96,000-£120,000 a year with no equity and no notice period beyond the contract term.

The two aren't perfect substitutes on cost alone, though — a VP Product is full-time and can manage people; a fractional CPO structurally cannot absorb the same daily volume of decisions.

The sequencing mistake founders make

The most common error is hiring a VP Product too early, before the strategy is validated, and expecting them to both invent the direction and execute it full-time. This usually produces a VP Product who spends their first six months doing discovery work they weren't hired or particularly incentivised to do, while the team waits for a roadmap.

The cleaner sequence: fractional CPO validates the strategy and gets an MVP shipped, then either that person converts to full-time CPO or the company hires a VP Product to execute against a roadmap that's already proven itself with real users and revenue.

When you genuinely need both

Some Series A and B companies run a fractional CPO for strategic oversight (often one day a week) alongside a full-time VP Product for execution — the fractional CPO acting almost as a chair-of-the-board for product, and the VP Product running the team day to day. This works when the fractional CPO has the seniority and stage-specific pattern-matching the founder wants but doesn't want to pay for full-time, and the VP Product needs a strategic sparring partner they don't otherwise have internally.

It's a more advanced structure and usually only makes sense once headcount is significant enough to justify two product leadership seats.

How to decide

Ask three questions: do we have a validated strategy already? Do we have a team of PMs that needs daily management? Do we have the budget for a full-time senior salary plus equity? If the answer to the first two is no, start with fractional. The Crossley Method's seven stages — Discover, Validate, Prototype, Build MVP, Launch, First Revenue, Scale — map cleanly onto this decision: fractional CPO work covers Discover through Launch and often First Revenue, while a VP Product hire typically becomes the right call once you're firmly into Scale.