By Carla Hinton Religion Editor chinton@oklahoman.comIt must have seemed that the office complex at 1501 N Classen had revolving doors. No sooner had one well known faith-based nonprofit moved out than another faith-based nonprofit moved in. Catholic Charities of Oklahoma City had occupied the building at NW 15 and Classen for many years before moving to its new headquarters at 1232 Classen Blvd.Read more on NewsOK.com