Why CMOs need a new operating system for accountability

Marketing leaders have never had access to more data, yet proving the business impact of advertising has become increasingly difficult. As budgets face greater scrutiny and finance teams demand clearer evidence of return on investment, many chief marketing officers are discovering that traditional performance metrics no longer satisfy the questions being asked in the boardroom.

Tal Jacobson, CEO of Perion, believes the challenge isn’t simply one of measurement; it’s a deeper infrastructure problem. He explains why today’s marketing technology stack struggles to deliver true accountability, how artificial intelligence is reshaping campaign execution and measurement, and what CMOs need to demonstrate business outcomes rather than marketing activity.

Because the conversation keeps stopping at symptoms, CMOs are under pressure, budgets are flat, and CFOs want proof. We all agree on that. But nobody’s asking why a decade of investment in marketing technology hasn’t actually solved the problem.

The real issue is structural. We’ve built an entire industry around measuring activity, not outcomes. Clicks, impressions, reach, frequency. These are not business results. They’re proxies. And for a long time, the C-suite accepted them. That era is over.

A workspace designed for growth, collaboration, and endless networking opportunities in the heart of tech.

CFOs have become more demanding about advertising investments. They’ve watched the budgets grow. Now they want to know what those budgets actually did. And most CMOs, through no fault of their own, don’t have a credible answer.

The data exists. The problem is that it’s fragmented across too many systems, each optimized to report its own success.

Search claims the conversion. Social claims the awareness lift. Display claims the assist. Add the attribution across channels, and you’ve “proven” three times the revenue you actually generated. Every platform is incentivized to show its own value. None of them are incentivized to tell you the truth about the whole picture.

So the CMO walks into a CFO conversation with numbers that don’t reconcile, from systems that were never designed to reconcile. It looks like a measurement problem. It’s actually an infrastructure problem.

The hardest question in advertising: did this spend cause anything that wouldn’t have happened without it?

That’s the incrementality question. And it’s the one question that the standard measurement stack was never built to answer. You can show that a conversion happened. You cannot easily show that the conversion happened because of the sp