Geoff is the director of the Physical Collections and Access Unit and oversees the stacks maintenance of the Hatcher/Shapiro complex, Buhr Shelving Facility, Research Museums Center, and the library's offsite shelving facilities.  His duties include coordinating the day to day operations of the units, organizing large book moves between the various locations, creating growth space for new items, and assuring the materials are correctly displayed in the library's online catalog.  The library houses over 9 million books with more being added daily.

He also supervises the Withdrawals and Transfers unit and is responsible for the operations portion of the Michigan Digitization Project and coordinates the shipments to and from the Google scan center.