What is your background Chin?
I did one last year with Kearney. It was pretty tough. I think Kearney selections are as though as Mckensie. They only take the best.
There were a series of interviews initially with different people from the team you are supposed to work with. The questions were around my CV and experience "What did you to convince a stakeholder", "How do you cope with stress", etc etc
The business case was around procurement transformation. I had 45 mins to prepare it.
Then presentation and technical interview.
Lastly the usual question on motivation, why you want to join ATK, what is your long-term objective and salary consideration.