Well lucky for you, but they do in the German department. Meanwhile in the Business School I have a lecturer who's literally incapable of doing his own multiple choice questions even after spending 40 minutes of the lecture on it, when I figured out the answer in 5 minutes. He also doesn't use the microphone properly, lies about his reasons for not putting up past paper answers, and makes blatant mistakes in his lectures, which instead of correcting, he realises, goes quiet for a little bit then carries on like the mistake didn't happen, only to later re explain the entire thing he was talking about because surprisingly enough the students didn't understand what he was on about due to the mistake.
Make sure you fill in your evaluation form for that Business lecturer, or talk to the department head about him. You're paying for the education, he's not delivering. Unless the department know what's going on, nothing will change. Convince other students to do the same, too.