Company XYZ$,$ which has been in business for a year, is run by three siblings: one handles production and shipping, one handles marketing and advertising, and the third manages financing and accounting. They trust each other and have agreed to manage the respective areas for which each person is responsible. Lately, though, there have been disagreements over missed production deadlines, excessive advertising costs, and late billings. Given these facts, Company XYZ is suffering from which of the following management failures?

A$)$ Sibling rivalry

B$)$ Growing pains of a start$-$up

C$)$ Inadequate integrated processes

D$)$ Lack of delegation