Consider why some organizations have a fully unified system (manufacture, promote and distribute) while others simply focus on one function (e.g., manufacturing). Companies such as Avon or Mary Kay, for example, are essentially fully integrated by controlling the manufacturing, the promotion and distribution of their product through their multi-level marketing force. On the other hand there are countless cosmetic companies that simply manufacture their products and sell them wholesale through retail chains. Discuss some of the advantages and disadvantages of either option.