As the cost of college remains exorbitant, recent trends indicate schools in the United States are trading tenured professors for non-academic administrative staff. It's pretty clear where American colleges have their priorities, and it's not in academics. Students are paying more to attend schools that are spending less to teach them, and instead spending that tuition money on administration.
According to a new report from the New England Center for Investigating Reporting, “the number of non-academic administrative and professional employees at U.S. colleges and universities has more than doubled in the last 25 years.” Meanwhile, full-time tenured faculty positions are at the lowest rate in 25 years, while the prevalence of adjunct professors – part-time, non-tenured professors – is at its highest. In fact, according to the American Association of University Professors, “more than three of every four (76 percent) of instructional staff positions are filled on a contingent basis," meaning without tenure.
The rise of adjuncts and decline of tenured professors has been ongoing for decades:
American Association of University Professors 
The reason that non-tenured professors are so much more popular than tenured faculty is simple: they’re cheaper. Adjunct professors, especially, make very little