CME Group Risk Management Analyst interview questions

Scheduled for a 3-person interview set via an HR email. Showed up 15 mins early to the interview, and was taken back 10 minutes late. Interview order in email read approximately: Head Mgr, Medium mgr, Analyst. Was actually taken back by the Analyst first, who was friendly but seemed groggy and unprepared for the interview (no formal question set). Head Manager came down second, spent 10 minutes in our interview (asking basic behavioral interview questions) and rushed out to a meeting he was late for. The Medium Mgr was sick that day so I was impromptu interviewed by another analyst- who was also friendly. Overall, negative experience. Casual dress/demeanor, lack of actually reading my resume (mgr actually admitted that our interview was first time he had seen it) and late/altered order interviews all seemed unprofessional. Turned down a second round set of interviews due to experience.