What are the common themes that bind the literature review and interviews?

Mid-term

Your paper examines the role of public planners and how the practice of planning intersects with public planning theory.Interview a planner and ask the following questions?
The paper should include:
Introduction
Question: How does public planning theory inform planning practitioners?
Literature Review
Methodology- questions/interview / Canned interviews American Planning Association
What are the common themes that bind the literature review and interviews?
Conclusion