Baltimore's offense has been fairly average all season, but when they've done well, it's been because star running back Ray Rice has gotten 25 to 30 touches per game.
Rice is an elite all-around running back with the speed to break outside, the power to run between the tackles and the hands to catch passes out of the backfield.
Now, let's go back to New England's divisional round game with the Broncos. Despite getting blown out, Denver actually had a lot of success running the ball with Willis McGahee, who had 76 yards and a touchdown on 17 carries.
Rice has the same capability, and if he gets going early, the Ravens have a good chance to put plenty of points on the board.
Against the Texans, Rice had a poor game statistically, and the Ravens struggled to score as a result. However, New England's defense isn't Houston's defense, so Rice has better prospects going into this matchup.