Patterson and Landry, (P and L) CPA firm is contemplating accepting an audit of a new client, UMO Catering. UMO Catering uses two accountants that rotate between the accounting department and the internal audit function. Two years one will serve as the accountant and then they switch to two years an the internal auditor. P and L could would like for you to inform them of some of the business risks involved in accepting this new engagement. Also, please explain what factors are considered when determining to use the work of the internal auditor? Finally, please explain if they should use the internal audit staff?