More RBs in Ravens' backfield plans?

Only two teams rushed for fewer yards and touchdowns than the Baltimore Ravens this season. There are myriad reasons why that happened, but the running backs themselves arguably were the biggest reason. Ray Rice averaged only 3.1 yards per carry, and Bernard Pierce was even worse at 2.9 YPC. Coach John Harbaugh said that the Ravens will look to add some new weapons to their backfield during the offseason.