Matthew Shirrell Matthew Shirrell is an assistant professor of educational leadership and administration in the Graduate School of Education and Human Development at the George Washington University. Authored Blog Posts Title Authored on The Social Side Of Capability: Improving Educational Performance By Attending To Teachers’ And School Leaders’ Interactions About Instruction Jan 25, 2018 Subgroup-Specific Accountability, Teacher Job Assignments, And Teacher Attrition: Lessons For States Apr 05, 2017