1) Why might a supply manager prefer to look for a new supplier rather than place additional business with an existing supplier? Why not? 2) Why is the trend toward single sourcing? What are the disadvantages to this trend? 3) What are the standard supply risks? How might they be mitigated? 4) Why might it be preferable to buy from a distributor or wholesaler rather than directly from the manufacturer? 5) What are the advantages of purchasing from large, global sources? 6) When might it be appropriate to conduct a formal, rather than an informal, supplier evaluation?