What is the relation of production function to other functions of the business

Hi Dear,

Sales : Dept. who will selling the products.

Marketing: Dept. who will spread and put plans to let customers know the products.

PR : Dept. who will visit companies,institutes,Univs.and informing people about the products.

Legal : Dept. who will arrange the contracts , and protect the products legally.

HR : Dept. who will recruit , train and pay for employees who manufacture the products.