Team friction happens often due to differing schedules, skill sets and mostly because of unequal motivation levels amongst members. Every group has the "know it all genius", "slacker", "person who talks a lot but brings nothing to the table"… Keep in mind one of the times when you had to deal with such a person in a group and elaborate on how you resolved the issue. Consulting firms are looking for leadership abilities as well, and they certainly wont hire someone who sits in a corner while other team members resolve issues.