A staffing technique for infrastructure modernization: rather than relying purely on internal staff unfamiliar with a new stack, bring in an outside expert to mentor the team hands-on through the transition.
Datasite used this when replacing its legacy Oracle relational database with MongoDB as part of its Monolith-to-Microservices Migration Playbook — an outside MongoDB expert was brought in specifically to mentor the internal team through the migration, rather than having the team learn the new database purely on their own.
Из тем: Transformation in Practice