<p>Arizona coach Dennis Green throws out the conventional defensive playbook when he's preparing a team to face Michael Vick.</p><p>Instead, he said, he institutes "Michael Vick rules."</p><p>So what are they?</p><p>"I can't tell you that," Green said Thursday, "but I think they know we will have a special way of trying to deal with Michael Vick."</p><p>Before Vick, the last player to require those special rules, Green said, was Barry Sanders.</p><p>"If you don't have those (rules), you won't stop them," Green said.</p><p>Whatever the strategy, the Cardinals (0-2) will go into Sunday's game at Atlanta (2-0) with a defense that's been good at getting turnovers, but not so good at stopping offenses, especially on the ground.</p><p>Arizona has six takeaways _ three fumbles and three interceptions _ in losses at St. Louis and to New England. But the Cardinals have given up 825 yards in two games, 348 on the ground.</p><p>"We're showing flashes of what we can do as far as getting turnovers," defensive end Bertrand Berry said. "But I think, as a whole, we still have to shore up our run defense. That's the quickest way to get beat in the NFL, to allow a team to run up and down on you and control the clock."</p><p>The biggest problem, Berry said, has been missed tackles.</p><p>"We're allowing backs to get too many yards after contact, after that first hit," he said.</p><p>Missed tackles are the norm against the multitalented Vick, who rushed for 109 yards and completed 14 of 19 passes for 179 yards and a touchdown in last week's victory over St. Louis.</p><p>"He does it all, man," Arizona safety Adrian Wilson said. "He can pass. He can run. He can probably pass it to himself. You never know with that guy."</p><p>Arizona's Emmitt Smith said Vick "might be the fastest quarterback ever to play the game."</p><p>"If he gets out in front of you, it's over," Smith said. "I don't know if we've got anybody on the squad who can catch him."</p><p>Berry said the defense will have to play with a controlled aggression.</p><p>"He's just so mobile back there you can't afford to make a mistake or he can turn a possible sack into a 50-yard touchdown run," Berry said. "We're going to have to play very smart, and try to be aggressive at the same time."</p><p>The Cardinals aren't sure who will be in the backfield with Vick. Running back Warrick Dunn sprained his left knee against St. Louis and is questionable for Sunday's game. If Dunn can't play, T.J. Duckett will start.</p><p>Green described Duckett as a power runner in the Stephen Davis mold. Duckett gives the Falcons the inside running threat that makes Vick's bootleg so dangerous, the Arizona coach said.</p><p>"Their running attack is based on `How many people are you going to use to stop the inside play to the right, and then how many does that leave you to handle the bootleg when we don't hand it off?'" Green said.</p><p>If the defensive end and linebacker pinch too much to stop the inside run, that leaves Vick free on the outside.</p><p>"Then you've got a serious problem," Green said, "because rarely can one guy tackle Michael Vick."</p>
