Lack of role clarity means unclear, inconsistent or frequently changing roles, overlapping responsibilities, conflicting or changing expectations and reporting lines, missing task information and unclear priorities. Example controls: clear position descriptions; defined management structures with a single immediate supervisor and an organisational chart; workplace and systems that match responsibilities, such as user profiles; clear instructions and an explanation of why roles were allocated; making sure those on the same task know who does what; redesigning tasks that regularly cause confusion or mistakes; updating job descriptions after change; regular check-ins; induction; guidelines for what to do when expectations conflict; checking understanding after change or restructure; and giving applicants a realistic job summary at recruitment.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.