The Teachers Insurance and Annuity Association (or TIAA Institute) is an organization that studies financial issues for educators. A 2013 TIAA Institute report stated that over the past 30 years, U.S. colleges and universities have changed the types of jobs they offer. The report said 70 percent of all faculty positions are now part-time, adjunct, temporary, or full-time. But these jobs are not tenure-track. Johns Hopkins University published a book in 2006 about higher education called The American Faculty. That book stated that in 1969, 80 percent of faculty positions across the country were tenured or tenure-track. Teresa Politano has taught media studies part-time at Rutgers University in New Jersey since 1999. Politano says the university has never offered her a full-time, tenure-track position. She also says the change in the kinds of faculty positions universities are offering is a big problem.