In 1994, Rathman was a member of the Los Angeles Raiders before retiring to pursue his coaching career.
After two years of work at both the high school and collegiate level, Rathman was hired by the Niners to coach their running backs, a job he held for six seasons. He moved on to coach the Detroit Lions running backs before sitting out last season.
"Tom brings a wealth of experience to our offensive backfield," said Raiders Head Coach Lane Kiffin. "Obviously, many in this area are really familiar with all that he has accomplished as a player, but what many may not realize is that he is a tremendous football coach. I could not have been more impressed with his overall knowledge of the game and through the interview process it was obvious that he is a dynamic competitor."
Johnson spent the past two seasons as assistant head coach and defensive coordinator at Miami University (OH), employed by the club for five of the last six seasons. His one season away was spent as an assistant special teams coach in the Cleveland Browns organization.
"I was very impressed with Taver's experience as a defensive coordinator," said Raiders Head Coach Lane Kiffin. "That overall knowledge along with his enthusiasm and passion for the game will be an asset for us with the Raiders."