Hi Syb and welcome to All Nurses. I am a CNS in adult health and interviewed at a hospital which uses the unit-based CNS as the educator. It seemed to work well for them and the staff nurses liked a "go-to" person who would locate the evidence-based practice and best practice info and then return the info to the staff nurse.
I found this at at the Massachusetts General Hospital site:
The VA is also on the forefront of using unit-based CNS's to provide education:
"Nancy Chang, RN, MS
Clinical Nurse Specialist/Educator
Veterans Affairs Medical Center
Exceptionally strong organizational, leadership, and clinical skills serve Nancy Chang well as she evaluates clinical nursing practices and develops new clinical protocols and performance improvement processes on multiple medical/surgical units, the dialysis unit, community-based outpatient clinics, and the call center. She has collaborated with informatics nurses in developing a new progress note template for improved documentation of care for patients on dialysis."
Norwood Hospital (again in MA) seems to use this model too:
Hopefully via some of these resources can point you in the direction of some people that might provide more information for you.