The 2027 marketing team: where the headcount should go
CEOs are asking whether AI means a smaller marketing team. Wrong question. The right one is which seats to add, which agency scope to stop paying for, and who owns the tools.
Every budget conversation this year reaches the same question from the CEO: if AI does more of the work, why is the marketing team the same size?
Fair question. Wrong frame. The issue is not how many people. It is which seats, which agency scope, and who owns the tools.
Here are the questions we hear most and how we answer them. These are our views, backed where possible by recent data.
"Should we cut marketing headcount because of AI?"
Not first. Look at where the money sits. Gartner's 2026 CMO Spend Survey puts the average marketing budget at 31.4% paid media, 24.5% labor, 19.4% martech and 19.2% agencies. Labor is a quarter. Agencies and martech together are close to two-fifths.
So map where AI removes hours, across your team and your agency's. Then decide which seats to redeploy and which agency scope to stop paying for. Cutting your people while the agency keeps billing the same hours is the worst of both.
"Do we bring the agency work in-house?"
Some of it. In the ANA's 2023 in-house study, 82% of members had an in-house agency and 54% of those handled some media. The ANA's June 2026 report found respondents about five times as likely to say in-housing is increasing as to say it is pulling back.
What moves in well: versioning, reporting, search management, repeatable high-volume work. What usually stays outside: strategy, specialist channels, peak capacity. Change the agency contract at the same time, or you pay twice.
"Where should we add?"
Two seats we see pay back quickly:
- A marketing operations lead who owns the stack, the renewals and the AI bill.
- An analyst who owns measurement independently of the agency.
Gartner found CMOs now put 15.3% of the marketing budget into AI, but only 30% report mature AI capabilities. In our experience the gap is ownership, not tools. One caution: Gartner surveyed 401 marketing leaders, mostly at large enterprises, so treat its splits as a reference point, not a target.
"What does the agency do that we cannot?"
Scale, specialist talent and buying power. Pay for those. Stop paying for project management and reporting you could run yourself.
"Who owns the bill?"
One person. Martech is close to a fifth of the average budget in Gartner's data, and AI tools are adding usage-based charges on top. Without a single owner, a renewal calendar and a usage report, that line grows by default.
The one-page test
Before you sign off the 2027 plan, put three columns on one page: seats you have, agency scope you pay for, tools you license. Draw a line between any two that do the same job. Each line is a decision you have not made yet.
Sources: Gartner, 2026 CMO Spend Survey, May 2026, MediaPost on the Gartner budget mix, 2026, MediaPost on the ANA in-house agency study, 2023, ANA, 2026 State of In-Housing Report, June 2026.
Should we cut marketing headcount because of AI?
Cut work before people. Map the hours AI removes across your team and your agency, then decide which seats to redeploy and which agency scope to reduce. Labor is about a quarter of the average marketing budget in Gartner's 2026 survey.
Should we bring agency work in-house?
For high-volume, repeatable work, often yes. The ANA found 82% of members had an in-house agency in 2023, and most still use external agencies for strategy and specialist work.
Who should own martech and AI spend?
One person in marketing operations with a budget, a renewal calendar and a usage report. Martech is close to a fifth of the average marketing budget in Gartner's 2026 data.
That is usually the first sign there is money in it. If you are setting the 2027 marketing structure now, fifteen minutes is enough to sanity-check it against what the budget is paying for.