Doing it all alone wears out good IT people. Handing everything to an MSP sidelines them. Co-managed IT is the middle path: your team stays in charge and Sidecar IT adds the coverage, tools and specialists they are missing.
Onboarding happens with your team, not around them. Your people keep working, keep their admin access and approve each step.
How Co-Managed Onboarding Works
Map the environment with your IT lead and agree in writing who owns what
Roll out shared RMM, ticketing, backup and security tools in stages your team approves
Start overflow helpdesk, after-hours coverage and projects on a date your team picks