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The Spend Report

The Operator's Guide to Building a Growth Team

How to build a growth team as you scale: what to hire first, what to keep with an agency, and how the shape of the team changes by revenue band.

By The Spend Report Editorial Team. Published June 24, 2026. · 6 min read

On this page
  1. First principle: who owns the number
  2. The team shape by revenue band
  3. Under $1M: you, plus one agency
  4. $1M to $5M: the first full-time generalist
  5. $5M to $15M: head of growth plus first specialists
  6. $15M to $40M: a real pod
  7. The in-house vs agency cost curve
  8. What stays with an agency, almost always
  9. Sequencing: add one function at a time

Most growth teams are built backwards. A brand hires a paid media specialist at $1.5M because the founder is tired of running ads, then bolts on an email person, then a content person, and two years later nobody owns the number and everyone is busy. The org chart grew, the CAC did not improve, and the agency is still doing the actual work.

The shape of a growth team is not a fixed thing you scale linearly. It changes at each revenue band, because the bottleneck changes. At $1M the bottleneck is execution speed. At $10M it is coordination across channels. At $30M it is whether anyone can connect spend to contribution margin. Hire for the bottleneck you have, not the one a bigger brand has.

First principle: who owns the number

Before any hire, decide who owns blended CAC or MER. Not "the marketing team." One person. At small scale that is the founder. At larger scale it is a head of growth. The failure mode is diffusion: paid owns ROAS, email owns flows, content owns traffic, and no single person is accountable when contribution margin slips. You can run three channels with three contractors and still have nobody who can answer "why did we get more expensive last month."

That ownership question is the spine of the whole org. Everything below is about who you put underneath the number, and in what order.

The team shape by revenue band

Here is the progression most DTC brands actually follow. The figures below are illustrative and meant to show the shape, not a precise headcount rule for your specific margin structure.

Under $1M: you, plus one agency

At this stage you do not have a growth team and you should not pretend to. Your first "hire" is an agency or a strong freelancer for paid media, because that is the one function with steep tooling and platform learning curves where buying expertise beats building it. You own everything else: email, the offer, the landing page, the weekly numbers. The mistake here is hiring a junior in-house marketer to "own marketing" before you yourself understand what good looks like. You cannot manage what you have never done.

$1M to $5M: the first full-time generalist

Your first real hire is a T-shaped generalist, not a specialist. Someone who can write an email, brief a creative, read a paid report, and ship a landing page change without a ticket queue. Title it marketing generalist or growth lead. Resist the urge to hire a "Head of Performance Marketing" here, that person will want to delegate execution you do not yet have anyone to delegate to.

Keep paid with the agency at this band. The math usually favors it: one in-house media buyer at this spend level costs more fully loaded than a competent agency retainer, and you lose the bench depth. The in-house vs agency vs hybrid cost math shifts later, but not yet.

$5M to $15M: head of growth plus first specialists

Now you hire the person who owns the number. A head of growth or VP who can actually connect channel spend to contribution margin and run the weekly growth review without you in the room. Under them, your first two specialist hires are usually a paid media owner and a lifecycle/email owner, because those are the two functions with the most recurring weekly work and the most platform-specific depth.

This is also the band where bringing paid in-house starts to pencil out, but only partially. Many brands run a hybrid: in-house owner sets strategy and owns the account, agency provides extra execution hands and a second set of eyes. Keep creative production with specialists or a studio until volume justifies a full-time creative.

$15M to $40M: a real pod

Here the team becomes a pod: in-house creative (or a small creative team), lifecycle, and crucially an analytics or growth-ops person who owns measurement and the data layer. At this scale, measurement is its own job. Nobody buying media has time to also maintain attribution, build the MER dashboard, and run incrementality tests. Pushing your TACoS and MER targets across the team only works if one person owns the definitions.

Agencies do not disappear at this stage, they move to the edges: a new channel you are testing, a specialized capability like CTV or affiliate, or overflow during peak. You stop paying an agency to run your core account and start paying them for things you genuinely cannot staff.

The in-house vs agency cost curve

The reason the team shape changes is partly cost. Agency spend is roughly fixed per channel regardless of how much you scale that channel, while in-house cost is a step function: you pay for a full head whether they are at 40 percent or 110 percent capacity. The two lines cross somewhere, and where they cross is the whole hybrid argument.

The figures above are representative, not a quote for your brand. Fully-loaded in-house cost means salary plus benefits, tools, and management overhead, which is where most build-vs-buy math quietly cheats. At low spend the agency wins outright. In the middle the lines run close enough that the deciding factor is not cost at all, it is control and speed: do you need someone in the building who can move in an hour, or is a weekly call enough. At high spend in-house finally wins on pure cost, but only if you have the volume to keep that team busy.

What stays with an agency, almost always

Some functions are worth keeping outside even at $30M, because the in-house version is brittle. Single-channel deep expertise in a fast-moving platform is one: when the platform changes its bidding model, an agency running fifty accounts sees it before your one buyer does. Surge capacity is another: a Q4 push or a new-market launch is easier to rent than to hire and then carry through January.

FunctionDefaultWhy
Brand and offer strategyIn-houseToo central to outsource
Lifecycle and emailIn-house earlyHigh recurring volume, owns retention
Paid media executionHybridIn-house owner, agency hands
Creative productionIn-house at scaleVolume justifies a team late
New channel testingAgencyRent expertise before you staff it
Analytics and measurementIn-house at scaleDefinitions must be owned internally
Illustrative build-vs-buy default by function for a mid-size DTC brand

Sequencing: add one function at a time

The most expensive org mistake is hiring two or three roles at once after a good quarter, then having to unwind them after a bad one. Add capacity the way you add channels: one at a time, each one held to a clear outcome before the next. A team built this way is also a team that survives a bad quarter, because you can see exactly what each head is producing.

The order that tends to hold up is: own the number, then add the highest-recurring-volume function, then add the next bottleneck, then add measurement. If you are scaling paid specifically, the paid ads agency guide walks through when the hybrid model breaks and a full in-house buyer earns their seat.

A growth team is not a status symbol. It is the smallest set of people who can own the number and move faster than the agency alone could. Build for the bottleneck in front of you, keep one person accountable, and add the next role only when the last one has proven its outcome. Not sure which role you are actually missing, take the operator archetype quiz and start from your own gap.