Remember when the Arizona Cardinals were 4-0 to start the 2012 season and some pundits (yes, yours truly included) wondered if they could be a surprise Super Bowl entrant? Yeah, us neither. Since that hot start, the Cards have lost three straight games, franchise quarterback Kevin Kolb is injured (again), John Skelton has replaced him (again), and people around the NFL are wondering if someone can sneak Larry Fitzgerald out of Glendale to a city with a functional offense (again). A surprising and aggressive defense is worth the price of admission, but as it's been since Kurt Warner retired, that offense is tough to watch. Meanwhile, the San Francisco 49ers are playing to type -- as they did last season when they went 13-3 and came a few fumbles away from the Super Bowl, they've built their new-look franchise around the concepts brought from Stanford by head coach Jim Harbaugh and defensive coordinator Vic Fangio. Start with a sound, punishing defense, add in the most multiple running game in the NFL, and give your quarterback just enough rope. It's a paradigm that many "tough" teams would like to adopt (hello, New York Jets), but few have the personnel and coaching to make it...