The objective of this paper is to show how some drawbacks inherent in the use of the Case Method in teaching Business English can be surmounted, especially when students are non-native speakers of English and the teacher of ESP is not experienced in this method. The first part of the paper presents a brief account of the general features, advantages, and disadvantages of the Case Method. The second analyzes how these obstacles can be overcome, using a postgraduate course on Foreign Trade and a case study adapted for this course as a reference point in a real teaching situation. The conclusion suggests that advance preparation by the teacher, suitability of the course syllabus, students' motivation, authenticity of materials and activities in which the learners are involved, as well as adequacy of the assessment measures and objectives pursued in the case, provide the key to the success of the Case Method.