The assessment centre was tough for this service line. The group exercise followed by the interview tested both your attitude towards other people and your technical capabilities. In particular your knowledge of the role. If you passed this section you were moved on to the case study. This was a difficult case study for time. You were also required to show how you handled a lack of data. I think what was important here was to tell the interviewer after about what you could do rather than what you did do.