S4 Capital's Monks has appointed Paula Marsilli as Vice President, Regional Accounts for Latin America. Based in Miami, Marsilli will lead strategic orchestration for key accounts, helping marketers transition to AI-first marketing supply chains. Marsilli brings over 20 years of experience across Brazil, Mexico and the United States, having held senior roles at Natura, Uber, VMLY&R, Omnicom Media Group, McCann and Ogilvy & Mather. She is a Caboré Award winner and former IAB Brazil director. Reporting to Sebastián Caramés, EVP LatAm, Marsilli will focus on building real-time brand ecosystems, breaking down silos between data, media and creative, and implementing AI-driven workflows. Her role emphasises decision augmentation over traditional account management, leveraging Miami as a strategic hub for Latin American operations.

Monks, the digital operating brand of S4 Capital, has appointed Deb Stroff as chief people officer, effective 1 February 2026. Stroff will lead global talent management, organisational structure and the integration of advanced HR software systems. Stroff joins from Jersey Mike's, bringing experience from roles at Quartet Health, OnDeck Capital, Hogarth, Coty and Time Inc. Her appointment supports Monks' 2026 priorities of improving workplace experience through AI adoption and fostering transparency. Executive chairman Sir Martin Sorrell said leadership bridging tech efficiency with human connection is essential as the company moves towards AI-driven decision-making. Stroff will oversee people strategy, operations implementation and enterprise systems optimisation to support Monks' transformation as a real-time brand.

NEW YORK, May 16, 2025 /PRNewswire/ -- In an industry first, S4 Capital's operating brand Monks – the unitary, digital only, data-driven marketing and technology services company – has been named the AI Pioneer Organization by The One Show, which has been recognizing creative talent in advertising and design for over 50 years. This newly created category honors companies pushing boundaries and shaping the future of artificial intelligence. This distinguished achievement highlights Monks' innovative approach, leadership, and commitment to advancing AI-driven solutions across the industry. Kevin Swanepoel, CEO of The One Club for Creativity, shares the reasoning behind the accolade: "In a year defined by transformative creativity, Monks has not only embraced the future – they're building it. Winning the AI Pioneer award at The One Show cements their position at the forefront of intelligent storytelling, where human insight meets machine ingenuity. Monks aren't just using AI – they're redefining what's possible with it."