Jon Kitna's snap count worries Wade Phillips

IRVING -- Under Wade Phillips, the Cowboys have used two quarterbacks in games, Tony Romo and Brad Johnson. Now this doesn't count when a wide receiver or running back attempts a pass.

Sunday vs. Jacksonville, Jon Kitna becomes the third quarterback to start a game under Phillips.

This is Kitna's first start since Oct. 5, 2008 when he left that game with a back injury while he played for the Detroit Lions.

Phillips has praised Kitna's command of the offense this week in practice but there is one thing that concerns him. Kitna's cadence is different from Romo's and that could lead to some false starts.

In Monday's game vs. the Giants, the Cowboys committed two false start penalties with Kitna at quarterback.

"His snap count is a little different," Phillips said of Kitna. "It bothers me a little bit in that we had some troubles with false start and those kinds of things. We had a couple in the ball game and having a new quarterback we work hard on that and trying to concentrate on that. We certainly don’t want penalties with a new quarterback and a different count everybody has to concentrate and focus more."