At his press conference Tuesday in which he was introduced as the Raiders' new head coach, Jackson mentioned that Ed Donatell will join the 49ers as secondary coach. Donatell recruited Jackson to play quarterback at University of the Pacific.
Kiffin, meanwhile, said that John Morton will leave USC and coach 49ers wide receivers.
"This is a great opportunity for John to further his career," Kiffin said, according to the Los Angeles Times. "We appreciate the great work he did at USC and wish him the best of luck."
Morton, 41, and Harbaugh were Raiders assistants in 2002-2003. In 2005, Morton was the passing game and wide receivers coach under Harbaugh at the University of San Diego.
Harbaugh has previously hired Greg Roman as offensive coordinator, Vic Fangio as defensive coordinator and Tim Drevno as offensive line coach.
IUPATI ALL-ROOKIE: Niners left guard Mike Iupati was named to the NFL's all-rookie team picked by the Pro Football Writers Association and Pro Football Weekly.
Iupati, a first-round draft pick (17th overall) out of Idaho, played all 16 games and impressed coaches with his ability to open holes and reach tacklers at the second level. He and fellow rookie Anthony Davis started all 16 regular-season games.
"I can't look at any part of my game and say it's complete or I don't need to improve on it," Iupati, 6-3, 331 pounds, said. "I think I can become a lot better player if I work on my technique and footwork and all of those little things. That's why I'm not taking any time off this offseason."
SINGLETARY TO VIKES: Former 49ers coach Mike Singletary started his coaching career as a linebackers coach. Now, he's returning to his roots.
Singletary was hired by Minnesota Vikings head coach Leslie Frazier to coach the team's inside linebackers, a position with which he's very familiar. It's a demotion of sorts, but Singletary has never been a coordinator, and he'll have an opportunity to learn while working under Frazier, his former Chicago Bears teammate.
"I'll be in Minnesota with Les," Singletary told ESPN Radio on Tuesday. "I will be a linebackers coach/assistant head coach."
Singletary, who was fired by the 49ers with one game left in the regular season, was a linebackers coach for the Baltimore Ravens 2003-2004 before joining the 49ers in the same capacity.