The Advancing Team-Based Care Initiative builds off the Team-Based Care Initiative in which JSI collaborated with Leibig-Shepherd, the Colorado Community Health Network (CCHN), and the Center for Accelerating Care Transformation (ACT Center) at Kaiser Permanente Washington Health Research Institute (formerly known as the MacColl Center for Health Care Innovation), to serve as technical assistance partners (TAP). The TAP assisted a cohort of 19 primary care practices (non-profit and private safety net providers) in optimizing their existing care teams to deliver coordinated, high-quality care by working collaboratively with patients to accomplish shared goals. In February 2020, the Colorado Health Foundation (CHF) launched the ATBC Initiative for safety-net organizations in Colorado. They partnered with JSI, CCHN, Nonprofit Finance Fund (NFF), and Think Equity (TE) to provide technical assistance (TA) to primary care organizations, to integrate a sustainable Team-based Care model. Working with 16 organizations across the state, the TA partners provided tailored coaching, peer-learning events, leadership sessions, and subject matter expertise. This initiative brought together experts from various fields to support clinics in achieving the quintuple aim: better care, happier patients, higher staff satisfaction, lower total health system costs, and reduced health disparities. It emphasized collaboration amongst and within healthcare organizations to enhance patient outcomes and resource utilization. The initiative also enhanced access to healthcare services in under-resourced areas by leveraging team members’ varied skill sets. It was a great test case for how collaboration among technical assistance providers generates better, more sustained health outcomes.