 Director of Collections & Conservation at SFMOMA, Sterret is an avid collector and preserver of artworks made by contemporary artists.She is committed to the vital collaborations between artists, curators, technical experts, registrars, and conservators that support contemporary art conservation practice.The variable media concept was developed in 1998, first as a creative strategy Ippolito brought to the adversarial collaborations produced with artists Janet Cohen and Keith Frank, and later as a preservation strategy called the Variable Media Initiative that he applied to endangered artworks in the Solomon R. Guggenheim Museum's collection.