Should firms first consider their environment and then shape vision and mission around it?

Student should document their activities, record problems they may have encountered and draft answers for Discussion Forums and Assignments. In addition, the student should consider the following questions for reflection: Should firms begin their strategic planning process by setting vision and mission and then go on to analyze its environment? Or, should firms first consider their environment and then shape vision and mission around it? What are benefits and drawbacks to each approach?