” If the class is crowded you also have to deal with grading. If you have an adjunct they will be making very little money and unless they stand a chance of getting a promotion they will have few prospects.”
This is pretty much the definition, IMHO, of many freshman level classes. These I believe, serve a useful purpose in quickly weeding out students who cannot handle a demanding quantity of work, cant stay sober long enough to learn, and can’t manage their money. However, it is one big party until they drop out.
There is a big difference between who you pass in the hallway at the beginning of the semester than at the end. Particularly in the Spring.