Sports Super Bowl XLVII: Beyond the coaches, Ravens and 49ers share similarities

Super Bowl XLVII contenders Baltimore and San Francisco have more in common than just the Harbaugh brothers. The Ravens and 49ers have similar defenses, and high-powered offenses.

Mark Humphrey, Matt Slocum/AP

Sunday's matchup in Super Bowl XLVII between the Baltimore Ravens and San Francisco 49ers promises to be an intriguing contest, as each coaching staff probes for weaknesses in the opponent to exploit. This is a weekly occurrence in the National Football League, but with two evenly-matched teams on the biggest stage, the in-game coaching adjustments will be critical to the outcome.