There's a text from one of the TOEFL exams:
Wildman and Niles observed that systematic reflection on teaching required a sound ability to understand classroom events in an objective manner. They describe the initial understanding in the teachers with whom they were working as being “utilitarian … and not rich or detailed enough to drive systematic reflection.”
I can't understand the meaning of the second sentence: "They describe ... ." what does "in the teachers" mean? what does "drive systematic reflection" mean?