[eshyong]

Not saying this applies to every company, but I've worked at two different companies that have done something similar:

* Healthcare startup that basically outsourced its entire infra/security team from a consulting company. The consultants rewrote everything and took over engineering leadership, basically acting as gatekeepers for anything SRE-related.

* Worked at an older DNS company that hired a bunch of consultants to help engineers migrate their web framework from Play to Spring. Said engineers used Play because it was shiny but didn't have the Scala expertise to keep maintaining it, so they moved to pure Java.