My university's CS department resorted to having adjunct faculty or part time lecturers come in, and this was after dealing with not having enough of them with

My university's CS department resorted to having adjunct faculty or part time lecturers come in, and this was after dealing with not having enough of them with time to teach more than one or two section of a course. It was so incredibly bad with a lack of instructors and/or time they could spend on multiple sections that there would be waitlists for students to get into courses at least two times as full as the section allowed. This wasn't just a matter of elective type courses being incredibly popular, but quite literally even regular core requirements simply not having enough lecturers/professors.