<p>Strick:</p>
<p>It may well be that the issue is not profs vs. graduate TAs but ladder faculty vs. adjuncts. More and more schools are cutting costs by hiring adjuncts who are paid by the course. Most of these do have Ph.D.s, many of them from as prestigious universities as the ladder faculty. Some are adjuncts by choice, others try remain in academia despite the absence of tenure opportunities and try to piece together a career by teaching at several different schools.</p>