The Kansas City Chiefs endured a rough year in 2011, getting hit by injuries right out of the gate, as three key players missed all or most of the season with torn ACLs. Then quarterback Matt Cassell struggled and got hurt. Then head coach Todd Haley was fired midstream. It added up to a year where the franchise regressed from its AFC West title in 2010 to a 7-9 record in 2011. Romeo Crennel is getting his second chance at a head coaching job now, and both he and his team are looking to make the most of a fresh opportunity.