Jim Jackson, an industrial salesperson for Pittsburgh Machine Tool, will call on two accounts this afternoon. The first will be a buying organization Jim has been servicing for the past 3 years. The second call, however, poses more of a challenge. This buying organization has been dealing with a prime competitor of the Pittsburgh Machine Tool for 5 years. Jim, who has a good rapport with the purchasing and engineering departments, feels that the time may be right to penetrate this account. Recently, Jim learned that the purchasing manager was extremely unhappy with the existing supplier's poor delivery service. Define the buying situations confronting Jim and outline the appropriate strategy he should follow in each case.