About Dr. Tina
From systems engineer to bestselling author and trusted leadership advisor, Dr. Tina Carroll-Garrison helps organizations align people, performance, and culture. Her OS5™ Leadership Operating System transforms leadership friction into performance infrastructure for fast-scaling companies, preventing growth chaos.
Dr. Tina's framework diagnoses misalignment and builds scalable leadership capacity. She empowers thousands to lead with clarity and purpose, bridging emotional intelligence with systems thinking and sustainable strategy.
Leadership is The New Profit Lever, when it's built on systems that scale.
OS5™ is a 5-point leadership operating system that replaces ad hoc training with a strategic rhythm for growth.
✓ Diagnose team readiness
✓ Align communication and decision-making
✓ Build scalable systems for leadership and learning
✓ Upgrade norms and rituals
✓ Prepare for funding, exit, or internal scale
Want to Explore OS5™?
Delivering Purpose-Driven Systems
Trusted by Federal Leaders and Growth-Minded Teams
For over two decades, Dr. Tina Carroll-Garrison has helped senior leaders across federal agencies and scaling organizations apply systems-based thinking to leadership, culture, and execution. Her OS5 Framework supports mission-critical growth through clarity, capability, and operational discipline-without the bloat of traditional training programs.
“Dr. Tina’s skillset resonates with our clients and deeply impacts the learning process—helping create engagement, alignment, and purpose across their workforce.”
— Jay Blackwell, VP, Human Capital, Gritter Francona Inc.
