Key takeaways
- The COO converts the plan into weekly execution across departments.
- No two COO jobs share the same scope, so ask which teams report into the seat.
- COOs approve change that crosses team boundaries rather than tools one team uses alone.
- Frame value as smoother handoffs, fewer manual steps and a believable rollout.
What are a COO's responsibilities day to day
Day to day, a COO's responsibilities are making sure the company delivers what it has promised, on time and at a sensible cost. That means running the operating rhythm: weekly reviews, targets for each department, and the escalation route when something slips.
The job is mostly about joins. Sales hands work to delivery, delivery hands it to support, finance bills for it. The COO looks for the places where those handoffs break and decides who fixes them.
- Translate the annual plan into departmental goals and a review cadence.
- Own service delivery, supply chain or customer operations, depending on the business.
- Hold the operating budget and approve spend that crosses departments.
- Design processes, policies and the systems that support them.
- Lead major change programmes such as new sites, markets or restructures.
COO vs CEO: how the two seats split the work
The CEO decides where the company is going; the COO makes sure it actually gets there. A chief executive spends much of their time outward, with the board, investors, large customers and the press, while the COO looks inward at how the organisation runs.
The split is a partnership rather than a hierarchy of ideas. Many CEOs hire a COO whose strengths complement their own: a product-minded founder may bring in an operator, and a commercial CEO may want someone who loves process. Some companies use the COO seat to prepare a future chief executive.
Why the COO role changes so much from company to company
The COO role changes from company to company because it absorbs whatever the CEO does not want to run directly. In one firm the COO owns sales, marketing and customer success; in another it covers only manufacturing and logistics; in a young startup it may mean finance, hiring and office leases as well.
This matters to anyone working with a COO. Before you assume what they decide, find out which leaders report to them and which budgets they hold. The answer tells you whether the COO is the sponsor, an approver or only kept informed.
Where a COO sits in a buying group
In a buying group the COO usually sits above the evaluation, as the person who resolves conflicts between departments and approves change that touches several of them. A head of sales can buy a tool for the sales team; a platform that sales, marketing and operations will all depend on tends to reach the COO.
They rarely compare features. They ask who will run the rollout, what stops while it happens, how the company will know it is working, and what happens if it does not. A champion who can answer those questions in writing moves a deal through the COO faster than any demo.
How to approach a chief operating officer as a seller
Approach a COO with an operational problem in their own company, described in their own terms, and a plan that shows the effort it will take. Research comes first: recent expansions, hiring patterns, new locations and public statements often reveal which processes are under strain.
As an illustration, a seller who learns a logistics firm has opened two new depots might open with the handover between sales and depot teams, not with a product tour. Keep the message short, offer a written summary they can forward, and expect the COO to pass the detailed evaluation to a direct report.
Where Pebbles Ai fits
- CapabilityResearch & analysisAsk an assistant what a company has announced about new depots, acquisitions or a restructure, and its answer comes back from the website and other public pages with every source numbered.
- CapabilityOutreach contentFrom that research, an assistant can write a short opening note built around one operational change, in your saved personality, and leave it in your connected Gmail or Outlook mailbox as a draft for you to edit.
Common questions
Who does a COO report to?
Almost always the chief executive. In some groups a divisional COO reports to a group COO or to the head of that division.
Is the COO the second most senior person in a company?
Often, but not always. In many firms the COO is the CEO's deputy; in others the chief financial officer or a president carries equal or greater weight.
Does a startup need a chief operating officer?
Rarely at the earliest stage, when founders share operational work. A COO tends to arrive once the company has several teams whose handoffs need one owner.
About this page. Written by the Pebbles Ai team for people who run sales, marketing and growth. Last updated .
