Hi,
As all of us know SM is responsible and serves for organization, PO and the DEV team. While SM is working for the team and organization the management is like a stakeholder. In our company one of the manager changed the resource without asking to any SMs, he contacted to developers directly and finally a change has been occured. And I heard this situation in an announcement. As far as i know we have to deal with this situation SM and the development team together.