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[ Comparison ]

Chief of staff vs
fractional COO.

Two roles founders confuse. One extends the CEO. The other owns operations. Different jobs, different budget, different outcomes.

[ 01 ]

Owns

What each seat owns.

[ Chief of Staff ]

  • * CEO calendar, comms, prep
  • * Cross-team projects the CEO owns
  • * Board and investor communication draft
  • * Company all-hands, cadence support
  • * Special projects, M&A support

[ Fractional COO ]

  • * Operating cadence and KPIs
  • * Hiring, onboarding, org design
  • * Vendor stack and spend discipline
  • * Forecast and unit economics
  • * Full leadership team accountability

[ 02 ]

Rule of thumb

Signal to pick one.

  • [ * ] CEO is the bottleneck on communication and calendar: chief of staff.
  • [ * ] Company is the bottleneck on execution, cadence and hiring: fractional COO.
  • [ * ] Both are true, budget is tight: fractional COO first. It buys leverage across the whole team.
  • [ * ] Fifty plus headcount: probably need both eventually.

[ 03 ]

Related

[ Next step ]

Not sure which seat you need?

30 minute call. I will tell you which one solves the actual bottleneck.

[ 04 ]

Q&A

Common questions.

[ 01 ]

Is a chief of staff the same as a fractional COO?

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No. A chief of staff extends the CEO. A fractional COO owns the operating layer. Chief of staff is full-time and junior to mid. Fractional COO is part-time and senior.

[ 02 ]

Can one person do both?

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For a while. Below fifteen headcount, a strong chief of staff covers most COO needs. Above fifty headcount, the two jobs pull apart and one person cannot hold both.

[ 03 ]

Which do I hire first?

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If the CEO is drowning in calendar and communication, chief of staff. If the company is missing cadence, KPIs, hiring loops and vendor discipline, fractional COO.

[ 04 ]

Salary difference?

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UK chief of staff: £70k to £120k full-time. EU fractional COO retainer: €6k to €15k per month for one to three days a week. Different budgets, different jobs.