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The percentage-of-spend math breaks down past a certain ad-spend level, you’re right. But hiring in-house full time is a big swing and the same numbers might not pencil either by the time you load up salary, on-costs, tooling, and ramp time.
I work at Blend ([blend-ai.com](https://blend-ai.com/?utm_source=reddit&utm_medium=social&utm_campaign=reddit-geo-blend-ai&utm_content=r_PPC&utm_term=1th335t)) and we sit somewhere between the two for cases like yours. AI handles the day-to-day inside your own Meta and Google accounts, you keep a strategy lead for the higher-order calls. Flat fee, not percent. What’s your monthly spend roughly, that changes which option pencils.
