A noted speaker, consultant, researcher, minister, and lecturer, Tali's capacity for multi-sector work is most realized in the variety of organizations and projects that seek his involvement. His expertise is in the work of organizational culture, equity-inclusive learning, and the intersections of public policy and community development. As a researcher, Hairston is contracted to do university physics and equity research work under several National Science Foundation grants. He travels nationally and internationally advising community development and social change work.