If it helps adoption renaming Scrum and the roles into something new is fine, but keep the values. I suggest not to map it to existing or traditional roles. Make up some new words.
I know a Dutch company which changed terminology of Holacracy (a complete system for self-organisation) in to Spark, because they got resistance with the wording and decided it would work better in their company. They say now hundreds of people are using it, so seems it could work.
The value is not in the naming, but in the framework or system itself.
Some other methods call the Daily Scrum the Huddle for example.