Cowboys placed Jon Kitna (back) on injured reserve, ending his season. The Cowboys couldn't continue to wait on Kitna's troublesome back. He's under contract through 2013, but is owed $2.9 million and turns 40 next season. If the Cowboys can't trust him to be reliable Tony Romo insurance, they'll have to move on. Stephen McGee is now the No. 2 quarterback and Arena League journeyman Chris Greisen has been signed to the practice squad.