Your work colleague, Adam, complains to you about the corporate policy that does not allow him to order and receive supplies that he needs directly. He thinks that it is inefficient for someone in purchasing to order the supplies and then for someone in receiving at the warehouse to verify receipt of the shipments. Only then does Adam have access to the supplies. Why can't he just order and receive them himself?

Considering Adam's question, respond to the following:

Explain to Adam the concept and importance of segregation of duties.