Easy if you know the business. You interview with few managers and different level of consultants to see if you fit from a culture prospective. If you dress to impress, you will get the job. Plus you really need to know the business. you cant bluff them. Not much negotiation. They will make you an offer that is reasonable and similar to same roles within other companies. The whole hiring process is very fast if they like you. Phone interview then on-site, in person and offer the same day or next. That is how fast they are.