That may technically be true, but he was an interim head coach for multiple years at USC:
Prior to his appointment as head coach at Texas in April of 2001, Elliott posted two remarkable seasons as the interim head coach at the University of Southern California. He compiled a record of 50-12 while leading the Women of Troy to their first NCAA Semifinals appearance in 15 years and first-ever share of the Pac-10 Conference title. In 2000, USC finished the season ranked No. 4 nationally by both the AVCA and Volleyball Magazine while going 29-3 en route to the NCAA Semifinals. Elliott was honored as Pac-10 Coach of the Year both seasons, as well as being named the 2000 Pacific Region Coach of the Year.
Under the leadership of Elliott, the Trojans featured two All-Americans in 2000 (April Ross and Jennifer Pahl) and six all-conference players, including the Pac-10 and Region Freshman of the Year (Ross). In both 2000 and 2001, Elliott’s recruiting class was regarded as No. 1 in the nation, the school’s first-ever No. 1 recruiting classes.