The Retainer Teardown: How to Rebuild a $2M Agency Retainer With 1 Person and 4 Agents

When an enterprise client wires $2M a year to a legacy holding company for an integrated retainer, they are essentially buying a compute block of ~8,460 human hours. If you actually profile how those hours get spent, the vast majority are just low-level, mechanical data transformations: resizing display assets across aspect ratios, summarizing call transcripts into meeting notes, pinging stakeholders to clear approval gates, and compiling the weekly telemetry deck. Today, you can offload almost that entire execution graph to autonomous agents—yet legacy agencies are still billing full human-hour rates for every single tick of the clock.

Just to see how the math actually shakes out from first principles, I took a standard $2M network-agency retainer and decompiled the scope of work line by line. Then I re-architected the exact same deliverables assuming a cluster of 1 senior human-in-the-loop orchestrating 4 specialized agents.

The result: 1 human + 4 agents can execute the entire annual scope for $136,300 - which is 6.8% of the legacy fee. Every single line item in the stack repriced to somewhere between 5.5% and 8.2% of what the holding company bills. That is a >14x compression in cost just by swapping out human I/O overhead for inference.

What agencies charge

Big marketers still pay their agencies for time. In its 2022 study of agency pay, the ANA found that 82% of marketers use fee-based models, with labor-based fees the most common. The agency puts a rate on every person, attaches hours to every line of the scope and sends the bill.

Holding companies don't publish their rate cards. I built one from the sources that publish figures:

• TrinityP3, which audits agency fees for marketers, puts 2026 agency rates at $100 to $175 an hour for junior roles, $175 to $250 for mid-level strategists and $300 to $500 or more for senior directors.
• The 4A's 2017 labor billing rate report put the blended rate across all US agencies at $155 an hour in 2016. Large New York agencies charged $540 to $598 an hour for an account service director and $775 to $849 for a chief creative director.
• Two holding-company PR firms publish government rate cards. Weber Shandwick (IPG) charged the US government $245 an hour for a creative director and $171 for an account director in 2020. BCW (WPP) charged $335 for a director, $378 for a senior director and $421 for a managing director. Both firms list these as government prices after discounts.
• The PR Council's 2025 report averages $278 an hour across all PR titles, as reported by Everything-PR.

I kept every senior rate at or below the published figures:

At these rates the agency bills 8,460 hours a year for this retainer at a blended $237 an hour.

The spreadsheet

I priced every senior hour in the rebuild at $300, the bottom of what holding companies charge for senior directors. I priced agents and tools at the cost of model usage and mid-tier software for listening, scheduling, design and analytics. I left media spend, shoots, talent and stock out of both sides; clients pay for those either way.

Scroll sideways for the full table →

I've filled in every line in the spreadsheet template. Put in the hours and rates from your own agency's scope to see your rebuild.

Where the hours go

The agency bills 8,460 hours; the rebuild uses 326 senior hours, a little over six a week. The agency spends the difference in three places.

Juniors doing work agents now do. The agency bills 80% of its hours at junior and mid-level rates. Those people spend much of that time on resizing, versioning, recaps, status reports, scheduling and report building. An operator with a production agent gets a key visual cut into 40 formats in minutes.

People coordinating people. Every person on the account needs a brief, a status update and a meeting. The agency bills 1,730 hours, about 20% of the total, for account management, project management and traffic. Asana's Anatomy of Work index found that knowledge workers spend 58% of their day on work about work: meetings, status updates and chasing information. With one person on the account, the operator has almost nothing to coordinate.

Handoffs between departments. Strategists write a brief for the creatives; the creatives brief the designers; the designers hand files to production; production hands them to media. The agency bills each department for reading the last department's work. One operator reads it once.

At 326 hours a year, one senior operator can run four or five retainers this size.

The operator's week

The operator owns the relationship, the strategy, the ideas and every piece of work that ships. On lines where the operator lacks depth, such as media buying or video, the operator brings in a senior specialist by the hour at the same $300 rate; the spreadsheet counts those hours in the senior column.

In a normal week the operator spends about five and a half hours on the account:

The operator spends the rest of the 326 hours in a few blocks a year: the annual plan, new campaign ideas, quarterly reviews and the odd crisis.

The four agents

Give each agent one job, read-only access by default and a written list of what it can't do. The operator sets the permissions, reads what each agent produces and answers for its mistakes. I'd build all four on a frontier model with tool access, connected to the client's systems through standard connectors.

Research agent

• Job: tell the operator what changed in the category this week.
• Connects to: web search, a social listening tool, review sites, the client's search console.
• Runs: every Monday at 6am; a monthly summary on the first Monday.
• Produces: a list of changes with a source link for each, and a one-page monthly summary.
• Can't do: publish, email anyone outside the operator, or state anything without a source.

You are the research agent for [CLIENT]. Every Monday, collect:
- launches, new ads and price changes from [COMPETITORS] in the past 7 days
- the 20 most-discussed customer reviews or posts about [CLIENT] and each competitor
- category search terms that rose or fell more than 30% month on month
For each item, give the source link and one sentence on what changed.
If you can't find a source for something, leave it out.
On the first Monday of the month, write one page: the three biggest changes
in the category and one question the operator should answer before next month.

Production agent

• Job: turn one approved piece of work into every version the plan needs.
• Connects to: the brand drive, design templates with locked brand elements, the video editor, the approved-work library.
• Runs: whenever the operator approves a master piece.
• Produces: variants, resizes, market versions, cutdowns and captions, each labelled with the master it came from.
• Can't do: publish, invent claims or change anything inside a locked template area.

You are the production agent for [CLIENT]. You adapt approved work. You don't
make new ideas. Before writing anything, read the voice guide, the banned-phrase
list and the claims list. For each request:
1. Produce every format on the format list from the approved master.
2. Mark any factual claim that isn't on the claims list as NEEDS PROOF.
3. Never change the logo, legal lines or locked layout elements.
4. Return everything as a draft for the operator. Never publish.

Channel agent

• Job: keep social and paid media running between the operator's checks.
• Connects to: the social scheduling tool and the ad platforms.
• Runs: hourly for social; twice a day for media pacing.
• Produces: scheduled posts, replies drawn from the approved answer library, bid and budget changes inside the caps, and an escalation queue.
• Can't do: spend past the caps, write a reply that isn't in the answer library, or answer anything on the escalation list.

You are the channel agent for [CLIENT].
Social: publish only posts the operator approved. Reply to comments only with
answers from the approved answer library. Send anything about complaints, refunds,
safety, the press or legal threats to the operator's escalation queue within
10 minutes and don't reply to it.
Media: keep each campaign inside its daily cap and bid range. Pause any campaign
running more than 25% above its target cost per sale for 48 hours and tell the
operator. Never raise a budget.

Ops agent

• Job: keep the account organized and the numbers right.
• Connects to: client email, call transcripts, the project board, analytics and the ad platforms.
• Runs: after every client call; every weekday morning; Friday for the report.
• Produces: call recaps, a decision log, board updates, approval chasers, the weekly report and brand checks on everything that ships.
• Can't do: send anything to the client without the operator's approval, or report a number without its source.

You are the ops agent for [CLIENT].
After each call: write a recap with decisions, owners and dates. Add each
decision to the decision log. Draft it for the operator to send.
Each weekday morning: update the board, list overdue approvals and flag any
date that will slip this week.
Each Friday: draft the weekly report. Link every number to the query that
produced it. If two sources disagree by more than 2%, show both and say so.
Before anything ships: check it against the brand rules and claims list and
list every problem you find.

The ten biggest lines

1. Account management ($250,800 → $17,500). The agency bills 1,010 hours across four people, from a group account director at $450 an hour to an account executive at $150, mostly for status calls, recap emails and chasing approvals. Have the ops agent draft the recap within an hour of every call and log each decision. The operator edits the recap and sends it, then spends 45 hours a year on quarterly reviews and the calls where the client makes decisions.

2. Creative concepting ($230,500 → $16,500). The agency bills an executive creative director at $550 an hour and a creative director at $425 to run 700 hours of concepting. Have the research agent build a brief pack: what competitors ran this year, what customers complain about in reviews, what the client's last three campaigns tested. Have the production agent mock up each route so the client sees all of them in a day. The operator spends 45 hours choosing the idea and selling it to the client.

3. Copywriting and content ($207,600 → $15,500). Load the production agent with the voice guide, a library of approved work and the banned-phrase list. The operator writes the first version of anything new, such as a campaign line or a launch page, and uses the agent for variants, channel versions and product copy. The operator reads everything before it ships.

4. Media planning and buying ($195,250 → $14,000). The agency charges this fee for planning and buying; the client pays for the media separately. Set the caps inside the ad platforms themselves, not only in the agent's instructions, so a bad instruction can't spend past them. The operator, or a media specialist paid by the hour, writes the plan, negotiates with publishers and approves every change above the caps.

5. Strategy and planning ($192,750 → $13,000). Keep a live category file with the research agent: competitor launches, search trends, remarks from earnings calls, customer reviews. The operator stops building decks from scratch and spends 35 hours a year deciding what the client says, what the client stops saying and which fight to pick this year.

6. Design and adaptations ($177,350 → $11,500). The agency bills most of these 940 hours for resizing: one key visual cut into 40 formats, then cut again for every market. Build templates with the brand elements locked. Give the production agent the master file and the format list. Run the output through the ops agent's brand checks and send the edge cases to the operator.

7. Social media management ($144,150 → $8,500). Write the answer library before you switch anything on: 50 to 100 approved replies to the questions customers ask most. Have the channel agent schedule posts and reply from the library. The operator sees every complaint, press question and safety issue within the hour and writes the posts that need a point of view.

8. Project management and traffic ($135,350 → $7,400). The agency bills 720 hours to move work between its own people. With one person on the account, you have nobody to hand work to. The operator has the ops agent update the board and flag slipping dates each morning, then spends 18 hours a year reviewing it.

9. Reporting and analytics ($111,400 → $6,100). Connect the ops agent to analytics and the ad platforms. Have it draft the weekly report and link every number to its source. The operator checks the three numbers the client will act on, adds three sentences on what changes next week and sends it.

10. Research and insights ($110,250 → $7,100). Agencies sell research as a project: a team, a survey and a deck six weeks later. Set the research agent to run listening, review mining and competitor tracking every week and write a monthly summary. The operator spends 12 hours a year reading it and choosing what to act on.

Build it in 30 days

Week 1: write the rules. Write the voice guide, the banned-phrase list, the claims list with a source for every claim, the answer library, the escalation list and the spend caps. Give every agent read-only access. Teams that skip this week let the agents guess, then spend the next three months fixing the guesses.

Week 2: run the ops and research agents in parallel. Keep the current agency or team running. Compare the agent's recaps and reports with what the agency sends. Fix the instructions wherever the agent's version is worse.

Week 3: switch on production. Send the next approved master to the production agent and the old process at the same time. The operator reads every output and logs every fix in the instructions.

Week 4: give the channel agent write access. Set the caps in the ad platforms first. Start with posting and approved replies, then pacing on one campaign. Add the rest once you've seen a full week with no missed escalations.

Where it breaks

Expect agents to fail in a few predictable ways and put a guard in front of each one.

Where clients should still pay for senior people

The rebuild still charges $300 an hour for senior time; clients should pay it for four jobs.

Deciding what to say. Someone has to choose the brand's position and defend it when the CEO wants something else. The operator reads the research, then makes the call.

Choosing the idea. The operator can mock up twenty routes in an afternoon with the production agent, then pick one and drop nineteen. Clients pay for that taste; they get more of it from an operator who spends no time in status meetings.

Telling the client the truth. A senior person tells a CMO the campaign is weak, the budget is wrong or the product launch has a problem. Holding companies send a director to that conversation on a good day and an account manager on a bad one.

Answering the phone. When a customer complaint spreads at 11pm, the client needs someone who picks up, knows the account and can make a decision. The operator knows the account because the operator does the work.

Take your current scope, put each line into the spreadsheet with the hours your agency bills and mark it agent, person or both. Then ask your agency to explain the hours on every line you marked agent.