Colleen Marshall is the Chief Clinical Officer at Two Chairs and a recognized leader in behavioral health, coaching, and organizational transformation. With over two decades of experience across startups, nonprofits, and healthcare organizations, she has built and scaled clinical operations, improved care quality, and advanced measurement-based approaches to psychotherapy. An author and international speaker, Colleen has shaped thought leadership in behavioral health through her publications and presentations at major conferences. Certified as a Professional Co-Active Coach and Licensed Marriage and Family Therapist, she continues to champion innovative care models, leadership development, and transformative approaches to behavioral medicine.