Final answer:
Switching from a single employment terms model to multiple employment terms model requires careful consideration and is not explicitly addressed in the provided options; it might involve policy redesign and understanding of legal aspects.
Step-by-step explanation:
An enterprise considering a switch from a "Single employment terms with multiple assignments" model to a "Multiple employment terms with multiple assignments" model needs to evaluate the constraints associated with such a change. The correct option when considering this switch is not provided in the context of the question. However, it generally involves a strategic decision that might include redesigning business rules, understanding legal implications, and possibly setting up new legal entities or work relationships.
For example, if a construction worker is laid off and takes a job at a fast food restaurant, it represents a change in employment terms and could reflect a shift to multiple employment terms if the worker takes on additional jobs or assignments. Economists suggest redesigning policies and building institutions to improve job information flow and worker mobility, facilitating transitions like the one from single to multiple employment terms.