Job/Task Expectations and Clarifications define what's expected of the members of the system, namely the teachers, administrators and other support staff. Depending on how jobs and expectations are defined, people will either perform or not perform. If a job or task is either poorly defined or that definition does not include certain features, then the persons employed in those jobs are unlikely to do it.
Review job tasks and expectations for all employees. Does their role or job lack a definition related to supporting all learners or employees and contributing to a flexible, open environment? What should change in those descriptions to support a more universally designed workplace, school or classroom?