You pretty much run the show. They get other senior consultants to interview, and it's all set up pretty last minute. I spiral bound a portfolio of my best work and it really impressed them (people don't usually do that). Having a portfolio also gave us something to continually talk about. Everyone was really nice, and that's the kind of people they look for. You get a lot of training time to learn skills, so they really focus on personality matches. (That's probobly why they want to hear you talk so much.)