Stanford hired former NFL assistant Vic Fangio as defensive coordinator on Tuesday.
Coach Jim Harbaugh also announced Tuesday that Brian Polian will take over as special teams coordinator and Randy Hart is the new defensive line coach.
Fangio spent the previous 24 seasons in the NFL. He most recently was linebackers coach under Harbaugh's brother, John, in Baltimore.
Co-defensive coordinator Andy Buh left last month for Nevada. Ron Lynn will stay on as director of player development.
Polian is the son of Indianapolis Colts president Bill Polian. He coached special teams the past five years for Notre Dame.
Hart had served as defensive line coach at Washington for 21 years before holding the same job at Notre Dame last season.
Arizona: Coach Mike Stoops hired Frank Scelfo to coach quarterbacks and promoted assistants Bill Bedenbaugh and Seth Littrell to co-offensive coordinators. Scelfo had been offensive coordinator and quarterbacks coach at Louisiana Tech. Bedenbaugh and Littrell will replace Sonny Dykes, who left to take the head coaching job at Louisiana Tech.
Kentucky: Former Tennessee quarterback Tee Martin was hired as wide receivers coach on Joker Phillips' staff. Martin was drafted by the Pittsburgh Steelers in 1999 and spent six seasons playing in the NFL (Raiders 2003), NFL Europe and the CFL. He spent last season as New Mexico's quarterbacks coach.
Ohio State: Former star
Pac-10: Commissioner Larry Scott said the window for expansion is open for the next year as the conference begins negotiations for a new television deal. Speaking on a conference call to introduce former Big 12 commissioner Kevin Weiberg as his new deputy, Scott talked about possibly adding new teams to the Pac-10 and launching a new TV network. Scott, the former head of the Women's Tennis Association, took over the conference last July. In his less than eight months on the job, he has seen growing interest from the membership over the possibility of adding teams for the first time since Arizona and Arizona State joined the conference in 1978. "It's really over the next six to 12 months that we'll start having serious analysis and evaluations," Scott said, adding the conference's TV deals will expire after the 2011-12 academic year. "To me, the logic if the Pac-10 is going to think about expanding, now is our window." Scott said there have been "no serious discussions" with any schools.
Cal: Sam Crosson was hired as an assistant on coach Rich Feller's staff. He replaces Matt McShane, who recently was named coach at Air Force. Crosson spent the past five seasons as the top assistant at Saint Mary's.
Wire services contributed to this roundup.