Episode
The End of Marketing’s Age of Opinion: Greg Stuart on Measurement, Attribution, and Making Marketing More Predictable
- Podcast
- Signal & Noise
- Published
- May 21, 2026
- Duration seconds
- 3539
- Processing state
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Summary
What if marketing’s biggest problem isn’t a lack of data… but a lack of discipline ? In this episode of Signal & Noise, we sit down with Greg Stuart, CEO of the Marketing + Media Alliance (MMA), for a deep, unfiltered conversation on why marketing still struggles to earn trust—and what it will take to fix it. Greg has spent the last several years rebuilding MMA into a global force focused on one core mission: turning marketing from a field driven by opinions, proxies, and vendor narratives into a real profession grounded in science, evidence, and predictable outcomes . This conversation is a hard reset. Because despite more dashboards, more tools, and more AI than ever, most marketing organizations still can’t answer the one question that matters: Is this actually making better decisions—and driving real business impact? The “Age of Opinion” is Ending Greg argues that marketing has operated for decades without a codified body of knowledge—unlike finance, medicine, or engineering. And until that changes, trust from the C-suite (and especially the CFO) will remain fragile. Measurement ≠ Better Decisions Only ~30% of marketers trust their KPIs enough to use them for strategy Only ~29% can trace decisions back to data Just ~22% describe their analytics capabilities as robust The problem isn’t dashboards. It’s decision-making maturity . The Attribution Illusion From last-click to MMM, Greg breaks down why most measurement frameworks still fall short—and why marketing continues to struggle to prove value in financial terms that CFOs actually believe. AI Won’t Save Broken Foundations AI doesn’t create truth—it reflects patterns. If your assumptions, metrics, and operating model are weak, AI will simply scale those weaknesses faster. Why Marketing Lacks Trust (and How to F…