NEW ORLEANS -- Safety Ed Reed and cornerback Cary Williams were the only Baltimore Ravens defenders to start every regular-season game for the AFC champions this season.The NFC champion San Francisco 49ers had nine defenders start every game.Overall, the 49ers had 17 players start 16 games during the regular season. Eight Ravens players started 16 games apiece.Roster health won't grab headlines the way brotherly coaching rivalries will grab them at the Super Bowl this week, but we all know which subject matters more.