Hi RM,
I would not worry too much about your background...you will not be the only student with a limited business background. We carefully assign students to teams so that there is a good balance of backgrounds (amount of experience, type of experience, cultural background, quantitative skills, etc.). Regardless of your background we are confident that you will be able to contribute strongly to your team.
I also wouldn't worry too much about preparing for the week, as you'll be learning the concepts you need to apply in the case throughout the week. The best piece of advice I can give is to plan on not being available to your work colleagues during the week (i.e. don't plan on checking in to the office regularly or being available to do work-related activities in the evening). Between class sessions, case work, team-building, and networking activities, you will have little free time.
Of course, while the week is intense, it is a lot of fun. Between the new relationships you develop and the new concepts you learn, we think you'll find the week incredibly fulfilling and, hopefully, inspiring.
Take care and let me know if there is anything else we can do to help!
Darren Klein
Kelley Direct Programs