Last Friday, the 49ers placed Colin Kaepernick on season-ending injured reserve.
Vic Fangio was the first candidate to interview for the 49ers' head coaching vacancy.
Mike Shanahan was the 49ers' offensive coordinator for the 1992, 1993 and 1994 seasons.
Brent Jones won three Super Bowls with the 49ers.
He was named to the Pro Bowl four straight seasons from 1992 to 1995.