steer and guide the direction of the conversation. Professor (and former Dean and English Department Chair) Stephen E. Fix was one of the early advocates for expanding the tutorial system at Williams and worked to increase support for the concept and the number of tutorial classes offered to students. Student course evaluations for tutorials are typically very high. In a survey of alumni who had taken tutorials, more than 80% rated their tutorials as "the most valuable of my courses" at Williams. Organization and administration The Board of Trustees of Williams College has 25 members and is the governing authority of the college. The President of the college serves on the Board ex officio. There are five Alumni Trustees, each of whom serves for a five-year term. There are five Term Trustees, each elected by the Board for five-year terms. The remaining 14 members are Regular Trustees, also elected by the Board but serving up 15 years, although not beyond their seventieth birthday. The current chair of the board of trustees is Liz Robinson. The Board appoints as senior executive officer of the college a President who is also a member of and the presiding officer of the faculty. Nine senior administrators report to the President including the Dean of the Faculty, Provost, and Dean of the college. Adam F. Falk is the 17th president of Williams, and took office on April 1, 2010. College Council (CC) is the student government of Williams College. Its members are elected to represent each class year, the first-year dorms, and the student body at large. CC allocates funds from the Student Activities Fee, appoints students to the faculty-student-administration committees that oversee most aspects of college life, and debates issues of concern to the entire campus community. College Council is the forum through which students address concerns and make changes around campus. CC is led by two co-presidents. To manage its endowment, the college started the Williams College Investment Office in 2006. The Investment Office is located in Boston, Massachusetts. Collette Chilton is the Chief Investment Officer. In 2020, the endowment-per-student ratio reached $1.40 million unadjusted for inflation, while in 1990 it was $151,000. Adjusting for inflation, the endowment-per-student ratio had still increased to almost $600,000. In 2021, Williams' endowment-per-student ratio was one of nine colleges or universities to exceed $2 million along with Princeton, Yale, MIT, Stanford, Harvard, Amherst, Pomona, and Swarthmore. Presidents