Well The software that we use is rather bad, but that's not the problem here. What happened in CS161's case was that the department had originally planned to h

Well The software that we use is rather bad, but that's not the problem here. What happened in CS161's case was that the department had originally planned to have a certain number of students in the class, and was looking for TAs. They weren't able to find these TAs, and that led to the cancellation of three out of seven sections.