Hi,I have an interview with ATK, London for Associate position in the same Technology & Transformation practice. Would appreciate if any of you share any thoughts on the following:1) I come from some of the biggies in technology firm, with around 4 years of experience and MBA, what salary should I expect? I have asked for 70k+bonus. Is that under quote or ambitious? Should I ask for sign on bonus?2) How are the case interviews at ATK? any specific guide for prep for ATK?Thanx...