Costantino Delli is a leadership architect, author, and founder of the COS™ (Creative Optimum Self™) Philosophy—an integrated system encompassing Integrated Being Intelligence and Integrated Leadership Intelligence. His work bridges inner mastery with operational excellence, offering leaders a way to integrate who they are with how they act, decide, and serve in an increasingly complex and fragmented world.

Born in Taranto, Italy, Delli immigrated to the United States at the age of eight. Early experiences shaped by hospitality, mathematics, storytelling, and adversity became the foundation of a philosophy grounded in precision, empathy, and human-centered responsibility. He earned academic scholarships and graduated from Mercer County Community College with a 3.97 GPA before transferring to Rutgers University, where he completed his studies magna cum laude in mathematics and business.

Delli began his professional career in executive management and scientific analysis at Wells Fargo and Science Applications International Corporation (SAIC), working on highly technical defense systems. He later joined Bloomberg Financial Markets, where he built financial trading systems requiring precision, reliability, and disciplined execution. He subsequently served as an Assistant Vice President at Deutsche Bank and led consulting initiatives at Valinor, Inc.

A professional and personal breakdown catalyzed a transformative inner journey that became the foundation of his life’s work.

Over time, Delli articulated the Creative Optimum Self™—integrating inner awareness with creative expression and disciplined execution. From this foundation emerged two complementary expressions of the same intelligence:

• Integrated Being Intelligence, which describes how intelligence is lived internally through awareness, embodiment, and presence; and 

• Integrated Leadership Intelligence, which describes how that same intelligence is expressed externally through thinking, relating, organizing, and serving in the world.

Together, they form one coherent system expressed across dimensions: being and doing, inner and outer, perception and application.

Delli later joined  the Screen Actors Guild, appearing in national commercials, television, and the HBO feature film Live from Baghdad.

He founded COS Enterprises, Inc., serving clients including Guardian Insurance, Citibank, and Ziff Davis Media in NYC then ventured into Hollywood advising on leadership and execution strategies with the film studios. Delli later served as a senior consultant at J.P. Morgan Chase, contributing to the strategic evaluation of a major infrastructure outsourcing initiative following the Bank One merger.

Delli’s first book, The Way: Live Your Dream—It’s Not a Secret (now re-released as Creative Optimum Self: Transform Your Life and Your World), articulated a framework of five inner and five outer steps for service and leadership excellence. His second book, 48 Answers for My Son, An Architecture of Integrated Leadership Intelligence, expresses the outer architecture of leadership, responsibility, and execution through lived reflection.

He later founded COS™ 4 Excellence, a boutique consulting practice delivering Integrated Leadership Intelligence through four pillars: Efficiency, Execution, Leadership, and Empowerment, and five dimensions of intelligence: Source, Emotional, Cognitive, Social, and Cultural. More recently, he expanded the framework with COS AI Mirror™—a human–AI integration system designed to reflect higher wisdom and emotional clarity—and founded COS™ 4 LIFE to extend the philosophy beyond business.

Over the course of his career, he has worked across finance, technology, media, health care and consulting, contributing to highly complex systems and advising leaders in environments where clarity, trust, and performance are inseparable. 

Across all expressions, his work remains guided by the COS™ Philosophy — one intelligence, lived fully, within and without.