Today’s "academic stack" of a core HQIM program plus a patchwork of supplemental higher tier solutions produces an incoherent system and fails to move the needle rapidly for students. This session highlights how a funder, curriculum and technology partner, and an assessment partner worked together with a large urban school district to rethink and co-design a coherent experience collapsing tier 1 and tier 2 instruction into a singular experience for teachers and learners. Participants will discuss real classroom impact and demonstrate how an infrastructure approach to MTSS converts day-to-day signals into next-day instruction and leader insight.