Creating Defensive Philosophy from Ground Up – Don Gelsomino

Coach Don Gelsomino, Head Football Coach at York High School (Elmhurst, IL), shares his philosophy on building a winning program. He emphasizes the importance of mission-driven culture, player buy-in, and flying around with energy as the foundation for success. The session covers how York developed its defensive philosophy, integrated scheme choices like the 3–3, aligned practice plans and game goals, and tied everything back to a clear coaching identity.