Criticism again!

Since I started the second year as a sophomore, I find that I become a critic. Before I’d rarely criticized my teachers when I was a high school student, and I felt that I learnt many things from them. However, of late I have had strong demand from my lecturers, meaning I often feel that they are not good enough or not qualified to teach me. I don’t know if this happens because of a change of my behaviour or it is the real problem of the lecturers. In fact, they are Master or even PhD graduates, but I feel that they don’t understand the students and don’t teach us in a way that we can understand it. My marketing and microeconomic lecturers are the examples. Besides, I really don’t like my English teacher at RULE! He teaches the book ‘Business Concept’. However, I find out that he doesn’t have enough knowledge in business management to teach us (General English MAY be possible!). He doesn’t really understand most of the key terms in business such as ‘Target market’, ‘broker’, ‘bookkeeper’, to name a few. But what I don’t like is that he never tells us that he doesn’t understand the terms, instead he tries to explain them based on his OWN understanding, meaning a wrong way! Of course, there are many problems related to him. For example, it maybe his habit to come late to class, never speak English in full sentences (it’s an English class!), threaten students by mark deduction,….I hardly believe that there is such a teacher existing in universities. What do you think about him?