Answer: Private accountant whose work is mainly with managerial accounting
Explanation: Quinn could be said to be be a private accountant, private accountants refers to accounting specialists who offers specialized accounting services to an organization or client. In the context above, Quinnn offers specialized accounting services exclusively to CCDL enterprises who employed him. By defining cost measures and ensuring that various department stay within their budget limits and do not exceed Budgeted finances in production, Quinn's services could be said to be mainly in the aspect of managerial accounting.