Weird. I interviewed a few years ago but I doubt much has changed. Nothing was off the cuff. They asked their questions off of a predetermined packet and they went round robin taking turns and never out of order. Seemed like they were more about roleplaying as managers than actually being one. Was offered a position, took it and found out I needed an unwanted certification the day i started that was never mentioned during the interview. The news was delivered with laughter as if it were funny and a fresh new colleague had the same happen to them.