I met with two Portfolio Change Managers from the practice. It was reasonably relaxed and information. They seemed to focus less on making it an "exam" and examined more of my thinking style, qualities and previous experience. They were both extremely friendly and make the interview very conversation, so it was more of an exchange as opposed to a more traditional interview approach with a panel. They did ask standard questions such as, environments that optimise my performance, difficult stakeholders and examples of innovation.