The President is the official spokesperson for OSCA, and oversees all communication between OSCA and outside entities, including the press, Oberlin College, and FaceBook. The President acts as a support person for All-OSCA Staff, and is responsible for maintaining lines of communication among all levels of OSCA Staff, Employees, and Membership. 

The Chair of the Board coordinates all activities related to the operation of OSCA's Board of Directors. The Chair is responsible for keeping Membership informed, ensuring that Directors how to participate on the Board, and how to facilitate Co-op Board Night. The Chair of the Board is a general educational resource for consensus and facilitation.

The Treasurer works closely with the Financial Manager to keeping OSCA on-budget and fiscally solvent. The Treasurer reviews monthly income and expenditure statements, and makes monthly reports to the Board. The Treasurer also trains co-op elected Treasurers, and leads the Financial Committee meetings. 

The Membership Secretary works to keep co-ops full, inform members (and potential members) about Wait List procedures and Membership policies, and trains Accessibility Committee Coordinators, Housing Loose Ends Coordinators, and Sexual Harm Information Liaisons  in accessibility and membership-related concerns.

Accessibility Coordinators are advocates for members who face issues of accessibility or potential privilege and oppression, who seek special accommodations, and who have encountered inaccessible situations in their co-ops. Together with Programming & History Coordinators, AccessCos plan the mandatory Privilege and Oppression Workshops each semester.

Cleanliness & Maintenance Coordinators keep co-op dining halls clean, safe and functioning through inspection and ongoing education of Membership on Ohio Health Code, cleanliness, and equipment operation. CMCs work closely with Dining Operations Managers, the Food Safety Advisor, Oberlin College officials, and individual co-op Food Safety Coordinators, and Kitchen Coordinators (KitchCos).

The Dining Operations Manager ensures the efficient operation of dining co-ops by liaising between Oberlin College Residential Education and Campus Dining Services staff and OSCA, and by supporting All-OSCA operational staff and co-op DLECs. Dining Ops are busiest at the beginning of semesters, end of semesters, period before breaks, and anytime there is a catastrophe.

The Environmental Concerns Coordinator works to minimize our footprint through education, environmentally-oriented projects, recycling coordination and composting efforts. The ECC encourages deep and thoughtful consideration of environments from macro to micro, generally promotes environmental awareness in OSCA, and chairs the Environmental Concerns Committee.

Food Coordinators liaise between OSCA's local food vendors and our individual co-op food buyers. FoodCos compile orders from co-op food buyers, place orders with vendors, and ensure proper distribution of food. In general, FoodCos work to maintain and develop our relationships with local vendors and local farmers to ensure timely acquisition and proper distribution of foods.

The Housing Coordinator ensures that health and safety regulations are followed in housing co-ops. The Housing Coordinator supports HLECs and house members to ensure that communities are functioning happily and cooperatively, works with Oberlin College Residential Education, and ensures that all housing paperwork is kept and filed appropriately.

HLECs create safe living environments for the members of their house, ensure that the house functions in a cooperative and supportive fashion, ensure that the knowledge to do so is passed on in some form to future HLECs and residents, and support house members and manage crises.

Housing Operations Managers serve as  resources for housing members on cleanliness/operations, and trains and supports co-op housing cleanliness coordinators. They coordinate with other OSCA staff and College administrators to ensure effective operation of OSCA housing. 

The OSCA/OC Liaison’s act as a liaison between Oberlin College and OSCA during Rent Contract Negotiations. This means making sure the College understands how OSCA is set up and where OSCA is coming from, and educating OSCA about what the College expects and where the College is coming from. This also means being a resource for Oberlin College about OSCA’s structure. 

The Programming & History Coordinator educates OSCA members about OSCA history, cooperative history, and cooperative theory & consensus. ProCos work to coordinate training of new OSCA members during Orientation, and coordinate the work of the New Member Trainers and co-op representatives on the Programming Committee throughout the year.

The SHIL helps OSCA members deal with issues concerning sexualized violence, sexual health, and sometimes overall well-being. SHILs advocate for members regarding matters of sexual misconduct but are not an alternative to the College Counseling Center or any other professional resource. SHILs may be asked to help members through the College’s judicial process. 

Student Admins assist the Office Assistant, Business Coordinator, and Financial Manager with miscellaneous office tasks as they come up, including but not limited to printing and copying jobs, envelope stuffing, shredding, maintaining the stack of Borrow Book Slips and Reimbursement Forms, maintaining records of housing and dining contracts, etc.

The co-op Board Representative sits on OSCA's Board of Directors, and approve policy by which OSCA operates. Primary responsibilities include being reliable sources of information for co-op members on issues brought before the Board and representing members’ concerns and feedback at Board meetings. 

The co-op Dining Loose Ends Coordinator is concerned with the well-being of the dining co-op. DLECs support the functioning of their co-ops as cooperative and safe environments for Membership by ensuring that co-op members are educated in all areas necessary to maintain a healthy and productive dining space.

The co-op Food Safety Coordinator works to ensure that Membership is food-safety trained, and that all food safety and cleanliness procedures required by a commercial kitchen are being followed.

The co-op New Member Trainer educates and supports new OSCAns. NMTs are responsible for educating prospective students about OSCA’s co-ops in coordination with Oberlin College Admissions.

The WT Membership Secretary is both the Membership Secretary and Dining Loose Ends Coordinator for OSCA co-ops during Winter Term. The Winter Term MemSec fills housing and dining spaces in OSCA for Spring Semester, and also must be knowledgeable about operations from financial organization to how a Hobart works. 

The WT President is both the Dining Loose Ends Coordinator and Dining Operations Manager for OSCA co-ops during Winter Term. The Winter Term President ensures the smooth running and efficient operation of the OSCA dining halls, and often does jobs that would otherwise fall through the cracks.

The WT Treasurer is both the Treasurer and Food Coordinator for OSCA co-ops during Winter Term. The Winter Term Treasurer is responsible for making sure that every co-op has enough food and that no co-op goes over budget.

OSCA's Summer Intern coordinates membership placement during Summer Break, when OSCA is not in session, as well as assist the Business Coordinator and Financial Manager with miscellaneous office tasks including fielding general questions by telephone and email, invoicing on Billing Day, shredding, and the Summer Lottery.