Hello Vaniya: It is a discussion of 2 things; GROUP and PURPOSE. (A) A Group of people, this paragraph indicates to us, must be EFFECTIVE. They must work well together. (B) The Purpose for the Group, must be kept in mind as something different from the Group of people itself. In other words, the Group is not formed merely for the purpose of bringing people together. If that were so, they could just drink coffee together and tell jokes, you see? The Group is Purpose---Specific, and because the Group must be effective to accomplish a Purpose for which they were created, The Purpose and the creation of the Group are two specific things. The formation of a Group to accomplish a task, is referred to as "Organization Design". The paragraph goes on to indicate to us that this is a Dynamic Culture. It will be changing constantly. "Why?" It is because professional persons who are hired to accomplish a specific task, must be more than just an informal group of persons brought together to "Brainstorm". Example: Engineers may be needed. More specifically, the Purpose may require Electrical Engineers. Experts in Nanotechnology may be needed. Finance experts may be needed, along with Production and Marketing Experts. Some Organizations may require some knowledge of Moral or Social issues. This is about "Organization Design".