Carrier swaps and circuit cutovers are deceptively simple on paper and high-risk in practice. In this episode Alex Morgan interviews Michael Harrington to unpack a compact, pragmatic playbook property and IT teams can use to plan, execute, validate, and recover from carrier transitions. We focus on clear ownership, sequencing, realistic testing, rollback triggers, and communication routines that keep building services—security systems, connectivity for tenants, and critical OT—running through the change. Michael brings hands-on commercial property operations experience managing carrier coordination, tenant impact, and business continuity; Alex frames the tradeoffs and failure modes that commonly cause outages. Listeners will leave with a prioritized checklist, test examples that actually catch problems, and rules of thumb for assigning responsibilities so cutovers are repeatable and reversible without late-night firefighting.