She had a comprehensive and far-reaching set of responsibilities, which required collaboration with every area of the institution and all constituent groups of Williams College, both on and off campus. Roseman had primary responsibility for all areas of student life—academic, social and residential, including the Academic Resource Center; Chaplains' Office; study away; the Multicultural Center and international students; career counseling; campus safety and security, disciplinary issues and crisis management; and the health center and psychological counseling services.
Roseman created new departments, consolidated a number of programs and functions, managed staff and budgets and collaborated with everyone from students to donors.
"It's always rewarding and energizing to work for an institution whose goals align with your passions," said Roseman. "Dickinson's focus on global education, sustainability studies and shaping engaged citizen leaders through the useful liberal arts resonates strongly with me, as these are ideals I've pursued and upheld throughout my career. I look forward to guiding the college through this next chapter as we capitalize on the impressive accomplishments of the last decade and push forward to take Dickinson to the next level."
At Williams, the positions of dean of the college, dean of the faculty and provost are faculty appointed by the president to serve three to five year terms with the intent that they will return to the classroom. Roseman, who served an extraordinary seven years as dean, followed that administrative position with a new assignment as assistant to the president for special projects. In this position she was once again able to use her managerial and alliance-building skills to develop and implement policies to improve the lives of students attending Williams, such as those on financial aid who needed additional assistance to purchase textbooks.In 2010, Roseman received a two-year appointment as director of Williams's study-abroad program, located at Oxford University. As program director she developed more avenues for science students to study and do research at the university. She was elected to the Faculty Steering Committee and the Committee on Educational Policy, appointed to the Science Executive Committee, the advisory committees for the biochemistry and molecular biology and women's studies programs and was chair of the Lecture Committee. In the private sector, Roseman served on the board of directors of Travelers Property Casualty as a member of the Investment Committee from 2002 until 2005.