The quality of Education

Most students go to class expecting to learn something, hopefully something related to the subject matter of the class. But what happens if the teacher is incompetent? or even worse simply has no clue what they are talking about. What is there to do? the Student can't complain to anyone, they have no recourse for action, and the teacher can play with the students grades. There needs to be better oversight in Academic institutions at all levels from Elementary to Collegiate. Part of the problem are policies like tenure. What other profession has such a ridiculous notion? There needs to be more liberal thinking at higher levels of education. Im not talking about crazies on the far left who think that everyone who thinks differently from them is wicked. In the past Academic institutions are where ideas for reform and genuine betterment of humanity have arisen. Education can not become stagnant and eventually decay; that way lies damnation. I fear what shall become of a future where academia becomes just another form of politics.