Which risk would make it difficult for an employee to understand what is changing, how...

If thecase for change is weak, employees struggle to understand why the change is necessary, how it benefits the organization, and what it means for their daily work. ACMP stresses that articulating a compelling case for change is foundational for awareness and buy-in. Inadequate planning (D) or behavior assessment (C) cause other risks, and weak sponsorship (A) compounds resistance, but thedirect barrier to understandingis a weak case for change.

(Reference: ACMP Standard, Process Group 2 – Formulate; Activity: Define the case for change to establish rationale and benefits.)