Educational change efforts that prioritize equity for multilingual learners (MLs) require attention to several interconnected components of the education system. We build on prior literature and our collective research to clarify the concept of "shared responsibility" for ML students and to operationalize the concept at the school, district, and state levels. Drawing on institutional theory and a racialized organizations lens, we argue that shared responsibility is embedded in the mindsets, norms, and structures that shape education systems. We also attend to the complexities of fostering shared responsibility in practice, such as grappling with pervasive educator burnout and developing innovative strategies that span levels of the system. We conclude with directions for future research, including studies examining effective approaches for shifting the mindsets, norms, and routines comprising shared responsibility, and recommendations for researchers to play a more active role in shaping shared responsibility for ML students.