Mariucci Fired Niners release coach who led team to playoffs four times. sports_nfl_mariucci_steve.jpg 60x45 home http://premium.si.cnn.com/pr/video/sports/2003/01/15/donahue_mariucci_fired.300k.smil?rpurl=http://sportsillustrated.cnn.com 10426712181420 cnnsi_free.gif lock_icon.gif superpass.gif http://premium.si.cnn.com/pr/video/sports/2003/01/15/donahue_mariucci_fired.300k.smil?rpurl=http://sportsillustrated.cnn.com 10426712181421 PLAY lock_icon.gif lock_icon.gif lock_icon.gif headline