Internal Audit scenario question…

Hi
For questions from Internal Audit portion, suppose a scenario based question that asks about drawbacks of inter department functioning shows up , (scenario is given below) do we need only common ideas and knowledge from doing many questions to answer such a question ?

The scenario which I saw in the question was all about drawbacks of a company’s ordering-procurement and purchase-accounting department functioning.

Thanks in advance. I just started the text in line with revision kit ,so confused with such aforesaid things.

Cheers
Jaison