There is more to organizing a business than choosing a legal structure (ie. cooperative, LLC, etc.). You must also determine how it will be organized from a business perspective.
What are the functions and duties that need to be addressed? Who will do them? Who will be in charge of day-to-day operation of the business? Who will report to whom? These and other questions need to be answered for the activities of the business to carried-out. So you will need to create an organizational structure for your business outlining the various positions that are needed and how they relate to the other positions in the organization. After that is completed, you can write a job description for each position that will describe its functions and duties.
More information on business organization structure is presented in the box at the right.