How can a company decide where to concentrate its expertise? Why are some companies better at exploiting their strengths than others? Is there a link between the range of a company's activities and its success and profitability? These are just some of the questions at the heart of a make or buy strategy for manufacturing business. Most companies will face issues such as these at some time or other, and in resolving them will determine the future shape of the business - for better or worse. Based on original research and case experience, this book presents a structured approach to making these important decisions. By drawing on the collective knowledge of people in the company, a make or buy strategy can be developed which focuses manufacturing capability on the factors critical to business success.