The shift isn't replacing people — it's removing the low-value work that used to eat their days.
The agencies winning right now aren't the biggest — they're the ones that have rebuilt their workflow around AI. The shift isn't about replacing people; it's about removing the low-value work that used to eat their days. A media buyer who once spent hours pulling reports now reviews an AI-generated summary in minutes and spends the rest of the day on strategy. A developer ships a landing page in an afternoon because the boilerplate writes itself.
Where does AI actually create leverage? Three places: research and analysis, first drafts of copy, creative and code, and anything repetitive and rules-based — reporting, QA, lead routing. Where it doesn't: judgement, taste, and client relationships. The lean team wins because it points senior people at the 20% that moves the number and automates the other 80%. That's the whole game.