Students enter with a given theme affiliation but have the flexibility to rotate with any faculty with active GBS status and may change theme affiliation if their research training interests change. Alternatively, faculty outside of a given theme may elect to join additional themes, if consistent with theme interests, wherein the student could retain his/her original theme affiliation. Additionally, first year theme-specific courses that may be required upon theme transfer can be completed in year two in fulfillment of advanced course requirements. Communication among the student, selected mentor, and both the original and the new theme directors will be necessary to facilitate transfer among themes. All students should confirm their theme affiliation at the time of selecting the dissertation mentor.