"Derek Anderson, it's your turn. For how long remains to be determined.

The Cardinals quarterback situation is up in the air after coach Ken Whisenhunt decided to shake up a struggling offense and start Anderson over Matt Leinart in the third exhibition, against the Bears tonight.

"I realize we're not game planning," Whisenhunt said. "We're not doing a lot so you're going to have some of those situations more so than we'd like to have, but still that would be something we'd look to improve on this week."

It's not clear if the move is permanent.

Leinart defended himself in an interview with The Arizona Republic on Friday.

"I've done everything to this point that they've asked me to and more," Leinart said. "I've worked hard and been a leader. I'm trying to be that guy in this new role. I have high expectations for myself."

He said his performances on the field have been "efficient."

"I don't know how we judge performance when you have 13 pass attempts to the other guy's 40," Leinart said.

Bradford keeping job"