KANSAS CITY, Mo. (AP) – Chiefs quarterback Matt Cassel is banged up. Tight end Tony Moeaki is done for the year, and nobody knows when wide receiver Jonathan Baldwin will be back from a thumb injury.  Yet Kansas City somehow believes its offense is even better than last year, when it featured the most potent rushing attack in the NFL. Even with an offensive line that might be considered at turns either old, inexperienced and lacking in depth.  The Chiefs only managed four touchdowns all of preseason, but
running back Thomas Jones says that shouldn’t matter. He believes that scoring punch will return when the Chiefs hit the field for real on Sunday in their season opener against the Buffalo Bills.