What happens when an APS LCE Language Specialist and a High School Teaching & Learning Coach move beyond parallel work and become true processing partners? This session highlights how one APS high school leveraged that partnership to transform data talks, 90-Day Plan writing, and instructional decision-making in service of bi-multilingual students. Grounded in the WIDA 2020 ELD Framework, the Marco DALE framework, and a biliteracy lens, we share how data-embedded ELD and intentional biliteracy development were integrated into site-based coaching cycles and collaborative data talks. Participants will examine how longitudinal analysis of EL student data across the APS system informed targeted supports, program design, and instructional planning. Learn how protected collaboration time, shared inquiry, and aligned systems work can dismantle silos, strengthen equity-driven practices, and center students’ linguistic and cultural assets in meaningful, sustainable ways.