Organizational structure and evidence based practice

Organizational structure delineates the work of the organization including chain of command, authority, and the formal communication network. A professional practice model is a guiding theoretical and conceptual framework that provides the foundation for nursing professional practice within an organization. 
In a discussion board post:
Describe the structure of your organization (functional, matrix, parallel).
What professional practice model is in place? 
Does the practice model work well within the organizations structure?
How is evidence-based practice integrated into the practice model?  Provide specific examples and rationale.