A well setup finance environment in an organization will give continuous insight in the (financial) status of the organization. A good comparison between plan and actual seen from different angles is crucial. Further a good insight in risks of the organization is important as is the need to comply to all statutory regulations related to Accounting and Administration.
The setup and maintenance of a finance environment of a large organization takes specific experience in this field. However a good understanding of all related processes like Marketing, Sales, Supply Chain is even as important.