

15 Aug 2026 · 2m · 1 chapter

The biggest misconception about AI in marketing/SEO bidding is that “the human is no longer needed.”
Chester Scott, Chief Strategy Officer at UNIO. Background: UNIO’s CSO (strategy leadership role).
AI can optimize effectively against the objective you set, but if the measurement, data input, or prompts are flawed, AI outputs are useless. Humans must fine-tune inputs and provide oversight/augmentation to ensure the objective and data are correct.
The episode contrasts AI-driven optimization with compromised outcomes caused by incorrect measurement and fundamentally flawed data/prompt inputs.
Written by AI. May contain mistakes.
Understand the importance of human input and oversight in AI-driven marketing.
“Or it's being fed information that is fundamentally flawed in the first instance, then it's useless.”

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On Voices of Search // A Search Engine Optimization (SEO) & Content Marketing Podcast, what are the key points of this episode?
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0:00Chester Scott: The Voices of Search podcast is a proud member of the I Hear Everything podcast network. Looking to launch or scale your podcast? I Hear Everything delivers podcast production, growth, and monetization solutions that transform your words into profit. Ready to give your brand a voice? Then visit IHearEverything.com. Welcome to the Voices of Search podcast, a member of the I Hear Everything podcast network. Ready to expedite your company's organic growth efforts? Sit back, relax, and get ready for your daily dose of search engine optimization wisdom. Here's today's host of the Voices of Search podcast, Jordan Cooney.
0:42I'm Jordan Cooney, and joining me today is Chester Scott, Chief Strategy Officer at UNIO. What's a major misconception with AI marketing, specifically paid or organic? That the human is no longer needed. I think that couldn't be further away from the truth. AI is absolutely incredible at delivering on against the objective that you give it. But if you're optimizing towards a compromised outcome, because your measurement is not right in the first place. Time for a one minute break to hear from our sponsor, Previsible. So you're looking for SEO help, and you got a couple of options. You could start replying to spam from agencies that claim they can get you to rank number one on Google.
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2:45Or it's being fed information that is fundamentally flawed in the first instance, then it's useless. The data input, the prompt, whatever it might be, but the input is critical. And that's where the human comes in. That is the role of the human moving forward is how do we fine tune the input in order for AI to give us a better output. But human oversight and augmentation for me is still business critical.
3:26you
Advertisers optimize for metrics that disguise the truth. Chester Scott, Chief Strategy Officer at Lunio, explains why ROAS—the North Star metric for most advertisers—undermines effective spend decisions across channels and campaigns. He makes the case for shifting to marginal ROAS to measure diminishing returns at the channel, platform, audience, and creative level, and reframes clicks as a fundamentally compromised leading indicator that should never drive optimization.
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