How serious are you about learning?
That is the question I would ask.
As a student, not as a teacher, I figured out that I alone was responsible for my own growth and destiny.
I have done the "have faith in sensei and he will impart everything you need to know" mentality. Didn't work for me.
I know study full time at one dojo, where I pay dues and look at the head instructor as my sensei for promotions and over all development.
I also, study with two other aikido dojos when time permits, and a third karate dojo. You can call the others sempai if you may.
Plus, I do a early morning trainng workout on my own.
I decided that it was better for me to stop sitting around for two or three classes a week and take responsibility for my own training in a sense.
I listen attentively in class to the instructor, and ask questions when appropriate and seek individual instruction on things I need help on.
So, I think the student has a big responsibility to make sure the teacher is teaching the right stuff as well!