The Performance Triangle: Why Better Advertising Starts With Shared Accountability

By Amanda Sheplee, VP, Agency Partnerships, Viant‘

Performance might just be the most overused word in advertising. Everyone is chasing it, optimizing toward it and promising more of it, but there’s a more fundamental question the industry doesn’t ask often enough: are we all defining performance the same way?  

Better technology, data and optimization can only go so far. The next opportunity to improve advertising performance lies in how brands, agencies and technology partners work together.

For years, those relationships have been largely sequential. Brands set objectives. Agencies build strategy. Technology partners drive plan execution. That worked when everyone’s role was more clearly defined. Today, media is more complex, technology is more sophisticated, and AI is automating much of the execution that once required significant human intervention.

Performance now depends on something bigger than any individual platform or partner. It depends on alignment.

I think of this as The Performance Triangle: brands, agencies and technology partners working toward the same business outcome, each bringing a different but equally important perspective.

Start With the Business Problem, Not the Product

The best conversations in advertising don’t start with products or platforms. They start with one simple question: what is the business trying to accomplish? 

That’s harder to answer than it sounds, because every partner brings different incentives to the table. Agencies are balancing client performance with fee compression and procurement pressure. Technology companies have their own revenue goals and growth expectations. Brands are focused on business results. None of those priorities are wrong, but if they aren’t aligned around the advertiser’s objective, everyone can hit their own KPIs while the business still falls short.

The Performance Triangle is about creating that alignment from the outset. Before anyone talks about products, media plans or optimization, brands, agencies and technology partners should agree on the business outcome they’re trying to achieve. Everything else should flow from there – from strategy and activation to measurement and optimization.

It’s a version of Simon Sinek’s famous “start with why,” except here, the “why” has to be defined together, by the brand, the agency and the technology partner, before anyone starts talking about the “how”.

That alignment matters beyond any single campaign. The open internet competes for advertising investment by demonstrating that it can deliver measurable business outcomes. If advertisers can’t clearly connect investment to performance, more dollars will naturally flow toward walled gardens that appear simpler to measure – even when they’re grading their own homework. Alignment isn’t just good for partnerships; it’s essential unlocking the true value of the open internet. 

Three Partners, Three Distinct Roles

Alignment doesn’t mean everyone does the same job. In fact, the Performance Triangle works because each partner brings something unique.

• Brands define the business objective and customer priority. They know where the organization is headed and what success looks like.

• Agencies translate those objectives into an integrated marketing strategy, connecting the business goal to audiences, channels and creative. 

• Technology partners provide the capabilities, innovation and insights to execute and measure those strategies at scale. They help brands and agencies understand what’s possible and turn technology into measurable business outcomes.

The real opportunity lies in bringing these groups together earlier. 

When technology partners are brought in only after the strategy is finalized, they’re limited to a tactical role: execute this plan, activate this audience, hit this KPI. But when all three collaborate from the beginning, technology can help shape what’s possible before the plan is locked, agencies can incorporate those capabilities into the broader strategy, and brands can ensure every decision stays connected to the business objective.

We’ve seen this model work across a range of client and agency relationships at Viant. 

Take City of Hope – the renowned cancer research and treatment center wanted to answer a much bigger question than whether advertising generated clicks or visits. They wanted to understand whether media influenced physician referrals – an outcome that’s notoriously difficult to measure because referrals often happen weeks after exposure and are driven by ongoing professional relationships rather than a single touchpoint.

That required City of Hope, iProspect and Viant to align on the business objective before a single media plan was built. Together, we developed a HIPAA-compliant measurement framework that connected campaign exposure across CTV, streaming audio, video and display with both patient engagement and physician referral behavior.

The results spoke for themselves. City of Hope increased referring patients by 10%, and connected TV performed as efficiently as paid search – the hospital’s long-standing benchmark for return on investment.

None of that measurement infrastructure existed off the shelf. It happened because everyone agreed on the outcome before anyone started optimizing. That’s the Performance Triangle in action.

AI Can Optimize, But It Can’t Align

The rise of autonomous media makes this model even more important; AI can automate execution, but it cannot resolve fundamentally misaligned incentives. Autonomy can actually magnify them. 

An autonomous system will optimize whatever objective it’s given. If that objective is misaligned with the business, AI simply becomes more efficient at chasing the wrong outcome. The risk isn’t that AI will fail to optimize. It’s that it will optimize exactly as instructed, just toward an outcome the business never actually needed. As data scientist Cathy O’Neil has said, algorithms are “opinions embedded in code”: AI doesn’t fix bad objectives, it scales them.

As AI takes on more execution across agencies and brands alike, that upfront alignment becomes more important, not less. Technology can determine how to optimize, but all three members of the performance triangle still need to agree on what it should optimize toward.

From Vendor Relationships to Shared Ownership

Technology will keep changing, AI will automate more execution, and agency models will evolve. New channels, platforms and measurement capabilities will emerge. But the fundamental requirement for performance will remain surprisingly human: getting everyone to agree on what winning looks like.

When the brand, agency and technology partner are aligned around the same business objective, technology becomes more useful, strategy becomes more actionable and accountability becomes easier to define. That’s  the real promise of The Performance Triangle: each partner still owns a distinct part of the equation, but everyone shares more responsibility for the outcome.That’s how better advertising gets accomplished.

Key Takeaways

• The Performance Triangle brings brands, agencies and technology partners together around a shared business outcome
• Effective advertising starts with the business problem, not a product, platform or media channel
• Brands define the objective, agencies build the strategy, and technology partners provide the capabilities to execute and measure it at scale
• AI can automate media execution and optimization, but it cannot resolve misaligned goals or incentives
• Early collaboration creates clearer accountability, stronger measurement and better advertising performance across the open internet,