The NFL may be a quarterback-driven league, but in the AFC this year its a backup-driven playoff. AFC seedings were heavily impacted by the play of replacement QBs throughout the regular season with 13 different quarterbacks starting games for the six postseason teams, compared to the NFC where playoff teams had their starters for every game. And quarterback uncertainty still lingers in the AFC as the playoffs begin. The No. 1-seeded Broncos just announced that Peyton Manning will start their divisional playoff game, but how completely he has recovered from a partially torn plantar fascia or how well he'll perform after missing six and a half games is anyone's guess.
Infographic: How backup QBs are shaping the AFC playoffs
