Are the roles that come with the initial install special roles that need to be kept and used? I am specifically asking about the ones that start with "CMS", such as "CMS Editors" and "CMS Readers".

I would prefer to define my own roles that match the customer's terminology and then remove the built-in "CMS *" roles. I know I can add my own roles, but I want to remove the other ones for consistency and to reduce confusion for the client.

For example, will removing the CMS Editors role cause workflow to break? The built-in workflow steps do not allow me to specify a role like custom workflow steps do. What role is tied to those default steps?