This, of course, requires shifting still more teaching to graduate students and other adjunct, non-tenured faculty.

FORBES: The Race for Prestige Drives College Costs

For instance, many colleges have steadily increased their use of contingent, or non-tenure track, faculty.

FORBES: Attacking Higher Ed Cost Inflation: Reform Academic Employment Policies

In a competitive labor market (and, contrary to what many non-academics believe, the market for faculty is extremely competitive), tenure means that institutions do not have to pay faculty as much in the form of cash or benefits.

FORBES: Professor Tenure as Insurance: What the Wall Street Journal Debate Missed