First round is over the phone with a corporate recruiter. Basic behavioral and resume-walk-through. Also questions about why McKesson and try to be specific. Most people who apply for this job have no idea what McKesson really does or how they make money. Do your diligence! Invited back for the second round at the headquarters. Given a case (it's the same one every year so read up on it online) to put together and present in front of some top level people. Impressive but while the interviewers are generally nice, there are a few people that make you wonder if working there would be all frowns and leers. Again be ready to know WHY McKesson. An impressive thing is to know what is happening in the industry, and be specific! Also know why and how McKesson has responded or lead efforts to deal with this.