Two team adrift in a passing league

The Colts and Jaguars couldn't be more diametrically opposed.  One is a defensive-minded team with a bruising running back content to control the clock and the line of scrimmage.  The other is a high-flying passing offense whose opportunistic defense comes up in big moments.  Yet this year, both are struggling due to a lack of production from their young QBs: The Colts, minus injured Peyton Manning, are following Curtis Painter. They're 0-9, the league's only winless team. The third-year quarterback from Purdue isn't the only issue, just the most visible. The Jaguars, who jettisoned veteran David Garrard five days before their season opener, are in the hands of Blaine Gabbert. They are 2-6 in large part because of the rookie's growing pains. Jacksonville's defense ranks No. 5 and Maurice Jones-Drew is the league's sixth-leading rusher. At so many levels, it's all about the quarterback.