Process was for the strategy analyst development program (ASADP)
Round 1: Two 45 min - 1hr (phone interviews). Almost entirely case interviews and questions you have for them. Want to see confidence, ability to talk with the Manager and ask the right questions.
Round 2: Final Round (In person at the office)
Two 45 min interviews (1 case) (1 sanity interview where they are really drilling into who you are, your background, why you're a good fit, etc.)
Case interviews were definitely the biggest part of the process.