Omnicom Group expands AI-led marketing transformation push with David Gatt appointment in Oceania

Omnicom Group is expanding its focus on AI-driven marketing transformation with the appointment of David Gatt as Managing Director of Marketing Operations and Ecosystem Design in Oceania.

The newly created role reflects a growing shift in client demand. Rather than focusing on campaign execution alone, brands are increasingly rethinking how marketing systems, data infrastructure, and technology platforms operate together. David’s mandate centers on helping organizations redesign these systems to function more effectively in an AI-led environment.

Based in Melbourne, David will work across the Oceania region, connecting capabilities across Omnicom’s broader ecosystem. This includes aligning agency networks with platforms such as Omni, alongside advisory and data services, to deliver more integrated and scalable marketing models.

The appointment signals a broader industry transition. Marketers are moving away from fragmented agency structures toward unified operating models that combine creativity, data, and automation. The objective is to enable faster decision-making, improved accountability, and measurable business outcomes at scale.

David joins from Deloitte, where he led marketing transformation initiatives across sectors including telecom, retail, and financial services. His experience has focused on bridging technology capabilities with commercial impact, particularly through marketing automation and operating model design.

The role also highlights how AI adoption is evolving within enterprise marketing. While many organizations are investing in AI tools, the challenge is shifting from incremental efficiency gains to structural transformation. Omnicom’s approach suggests a move toward re-architecting marketing ecosystems rather than simply accelerating existing workflows.

For holding companies, this marks a strategic pivot. Competitive differentiation is increasingly tied to the ability to integrate data, technology, and creative capabilities into a cohesive system. In that context, leadership roles like this are less about managing functions and more about designing end-to-end marketing architectures that can scale with AI.