You went inside the training center of the second division for your first day as a Soul reaper. You have no clue what division is really capable of, but you know about the other divisions.

Soifon: "I'm Soifon captain of the second division of the gotei 13. I will be expecting all of you to be stealthy in combat because the second division is known for stealth missions. Also you need to know how to use either your zanpakuto or your fists."

you weren't expecting for her to be the captain of this division.