After sitting out 2013, two 'redshirts' eager to help 49ers

Daily 49ers blog for NBC Bay Area website: Running back Marcus Lattimore and defensive end Tank Carradine didn't play a single down in 2013, but could make first-round type of impacts in 2014 for 49ers. http://www.nbcbayarea.com/news/sports/Niners-Should-get-Boost-From-Two-Redshirts-241839681.html