As the owner of the target state endpoint architecture for the consolidated tenant—spanning the join model, identity/device trust, Intune/Autopilot posture, compliance strategy, and app delivery—you will define the tenant-to-tenant device migration approach through the structured sequencing of identity readiness, device readiness, policy/app alignment, cutover, and stabilization. You will establish factory-ready runbooks and quality gates for every major device migration activity (covering pre-checks, enrollment, policy assignment, app deployment, validation, and rollback) while specifying and operationalizing the use of migration tooling, such as PowerSyncPro or its equivalent, including configuration patterns, telemetry, dashboards, and failure triage. Additionally, you will define device cohort segmentation strategies for VIPs, executives, kiosks, shared devices, remote-only users, high-risk apps, and high-privilege users along with tailored migration patterns for each, while leading architectural decisions for the Autopilot strategy, device provisioning, re-enrollment paths, device compliance re-baselining, and post-move support. Finally, you will define the security and compliance impact model regarding Conditional Access dependencies, compliance policies, device certificates, Defender integration, and privileged access constraints, create and govern an exception framework for managing allowed exceptions, evidence, approvals, and technical debt, act as the final escalation point for systemic issues to drive root-cause elimination back into improved standards, and ensure the capture of audit-grade evidence for each wave, including readiness evidence, validation packs, known-issue logs, and acceptance sign-offs.