A modern building may label access control, HVAC, connectivity, life-safety support systems, tenant services, and building automation as “critical.” But when resources, backup capacity, maintenance time, or recovery attention are limited, treating every system equally creates confusion and weakens resilience. In this interview, Alex Morgan speaks with Michael Harrington and James Rogers about how to distinguish technical importance from operational consequence. They explore how a failed system affects occupants, tenants, facilities staff, security operations, and business continuity; why system rankings often differ between property management, IT, and engineering; and how to create a practical priority map without relying on vendor claims or complicated scoring models. Listeners will learn how to ask better planning questions, identify competing priorities, and turn vague criticality labels into shared decisions that guide maintenance, redundancy, staffing, and recovery planning.