Original sentence: The most recent (2008) issue of the US News and World Report rankings has put Sarah Lawrence among the "unranked" insititutions, colleges and universities that for a variety of reasons do not adhere to the magazine's guidelines
Edited sentence: The most recent (2008) issue of the US News and World Report rankings has put Sarah Lawrence among the "unranked" institutions, colleges and universities that for a variety of reasons do not adhere to the magazine's guidelines