As digital ad spending continues to climb, the brands that embrace data-driven collaboration between marketing, finance and analytics will be best positioned to win.
May 20, 2025 by Ben Dutter — Chief Strategy Officer, Power Digital
Retailers are under growing pressure to justify their ad spend while maintaining growth in an increasingly competitive market.
In fact, Gartner reported that marketing budgets have dropped to just 7.7% of company revenue in 2024 — a 15% decline from the previous year. With U.S. advertising spend expected to reach $450 billion by 2025 and digital ad spending surpassing $325 billion, companies can't afford inefficiencies. That means every dollar must drive measurable impact, but many brands struggle to prove return on investment due to misaligned priorities between marketing, finance and analytics.
This disconnect is more pronounced than ever as 75% of CMOs report they are being asked to "do more with less," forcing them to reconsider commitments to marketing channels, resources and technologies. Where budgets are scrutinized and performance is critical, brands that fail to align their internal teams risk overspending on ineffective channels, missing revenue opportunities and losing market share.
Despite advances in data-driven marketing, many brands still rely on traditional attribution models that fail to accurately measure impact. These outdated models often inflate performance metrics, leading to misallocated budgets and misguided strategic decisions.
This is where incrementality testing changes the game. Instead of assuming an ad campaign drove conversions, incrementality testing uses controlled experiments to measure the true lift generated by marketing efforts. The result? Clear, data-backed insights that help finance teams justify spending and enable marketing teams to optimize performance.
For example, a sustainable shoe brand hit a plateau in market demand, and they knew they needed a major shift in their marketing strategy to return to a strong growth trajectory. They began with a thorough analysis of their financial performance, allowing them to implement incrementality testing to identify opportunities to optimize customer acquisition through paid channels.
The brand focused on both creative modernization and customer acquisition efficiency and redefined how they approached performance measurement and customer engagement. This data-first approach, maximizing both revenue and efficiency, reshaped the brand's market trajectory and propelled 75% year-over-year revenue growth. The shift in their marketing strategy also aligned the brand with future market demands, creating a path for long-term, scalable success.
So how can retailers ensure that their teams are aligned and making data-driven, high-impact decisions?
The retail industry is at a turning point. As digital ad spending continues to climb, the brands that embrace data-driven collaboration between marketing, finance and analytics will be best positioned to win.
Those who fail to align teams, rethink performance measurement, and test before scaling will continue to struggle with wasted ad dollars and missed revenue opportunities. Measure what matters, get teams aligned and ensure every dollar drives efficient and profitable growth. The question isn't whether brands can afford to optimize their ad spend - it's whether they can afford not to.
Ben Dutter is the Chief Strategy Officer at Power Digital, a tech-enabled growth firm–at the intersection of marketing, consulting & data intelligence–igniting revenue and brand recognition for leading and emerging companies around the world. He is also the Founder of fusepoint, a strategic data consultancy within Power Digital that helps brands optimize their go-to-market strategies, measure campaign incrementality, and maximize ROI.