If you see your MBA path as a solo endeavor - think again! You will have group work during orientation, group assignments during classes, and groups you seek out for your own study sessions. B-school is nothing if not a social endeavor in managing behaviors, building relationships, and negotiating ideas for assignments.
Group projects are essential to nearly every class you will take in your first year as an MLHR graduate student. They teach you how to operate in teams, and work with different individuals that you normally would not work with. Though many times a hassle in coordinating everyone's busy schedules (especially since every quarter I have been in a group with at least one working professional who has more outside responsibilities than the average full time graduate student) they are good for you as a student and future professional.
After the first week of classes this quarter, I managed to catch a stomach virus. I was stuck at home, mostly confined to my bed and felt like I had been given a one-two punch to my head and gut. And to make me feel worse, I had to miss our first core team meeting as well as an entire day of classes. Luckily, I have the best team ever.