In 2007, the library began implementing a reorganization plan, known as ML/21 (Main Library for the 21st Century), to plan the creation of a Technology Center, Teen Center, a Popular Library, and a Local History and Genealogy Department. The plan also called for the disbanding of subject departments in Art and Music, Literature and Languages, History and Genealogy, Rare Books and Special Collections, Science and Technology, Government and Business, Education and Religion, Fiction and Young Adults, and Films and Recordings. The latter two departments were planned to be incorporated into a new Popular Library. The History and Genealogy Department were planned to be merged with Rare Books and Special Collections to create the Local History and Genealogy department. The other subject departments were planned to be merged into the Information and Reference department. Approximately 24 professional positions (those holding a Master of Library and Information Science) were slated for elimination through attrition and reassignment.