Dr. Tim Van Alstine resigned as Western Illinois University Athletic Director on Tuesday.
Van Alstine served as athletic director there since July 2001.
The university hasn't named a permanent replacement, according to a press release issued by WIU.
WIU will conduct a national search summer.
Assistant Athletics Director and Senior Women's Administrator Lisa-Melz Jennings will serve as interim athletic director until the search is complete. Melz-Jennings has been a member of the WIU athletics staff since 1998.