There's a reason NFL coaches prepare for opponents by watching video of the opponents' previous four games. So much can change each week that it's often a waste of time to look back more than a month.
The defensive coaches and players involved in tonight's game between the Cardinals and 49ers know that all too well. The teams' offenses both look drastically different than they did in San Francisco's 20-16 victory in the season opener. The 49ers have changed quarterbacks (Alex Smith for Shaun Hill), added a receiver (Michael Crabtree) and changed their scheme (to the spread formation). Unlike the season opener, the Cardinals have a healthy corps of receivers, a competent running game and an offensive line that's making few assignment errors.
"Seems as though they are going to another level right now, which is good timing," 49ers coach Mike Singletary said of the Cardinals. "I think it's the same offense, only they are just getting better at what they do."
There is no hotter quarterback in the league than the Cardinals' Kurt Warner. He has had a passer rating of more than 120 in each of the past four games, something only Johnny Unitas had accomplished. No quarterback has done it for five consecutive games.
The Cardinals have running threats with Tim Hightower and Beanie Wells. And their top four receivers are healthy, unlike the season opener when Steve Breaston was out with a knee injury and Anquan Boldin was hobbling with a bad hamstring.
"I think the thing is now we are putting full games together so much better than we did early," Warner said. "There were still some games early that I felt I played as well as I've ever played. It just seemed like it was for a half. ?
"Now, I think what's great about it is we've come together. We're playing good as a team in all facets, and we're doing it for 60 minutes."
The Cardinals returned 10 offensive starters from last season, with fullback Dan Kreider being the only new face. And he starts only occasionally. But it's foolish for any team to think last season's success automatically carries over to a new season, coach Ken Whisenhunt said.
"They (defenses) obviously played us differently early in the season," Whisenhunt said. "We have kind of adjusted some of what we do to compensate for that."
More teams are playing two-deep zone coverage against the Cardinals, concentrating on stopping receiver Larry Fitzgerald from getting deep. To counter, the Cardinals are putting Fitzgerald in motion more and lining him up in different spots to try to create mismatches.
Keeping safeties deep also opens up the possibilities in the run game.
"We have a full deck of cards, so to speak," Fitzgerald said. "We're balanced right now, running the ball effectively, throwing the ball effectively, keeping Kurt upright."
The defensive coaches and players involved in tonight's game between the Cardinals and 49ers know that all too well. The teams' offenses both look drastically different than they did in San Francisco's 20-16 victory in the season opener. The 49ers have changed quarterbacks (Alex Smith for Shaun Hill), added a receiver (Michael Crabtree) and changed their scheme (to the spread formation). Unlike the season opener, the Cardinals have a healthy corps of receivers, a competent running game and an offensive line that's making few assignment errors.
"Seems as though they are going to another level right now, which is good timing," 49ers coach Mike Singletary said of the Cardinals. "I think it's the same offense, only they are just getting better at what they do."
There is no hotter quarterback in the league than the Cardinals' Kurt Warner. He has had a passer rating of more than 120 in each of the past four games, something only Johnny Unitas had accomplished. No quarterback has done it for five consecutive games.
The Cardinals have running threats with Tim Hightower and Beanie Wells. And their top four receivers are healthy, unlike the season opener when Steve Breaston was out with a knee injury and Anquan Boldin was hobbling with a bad hamstring.
"I think the thing is now we are putting full games together so much better than we did early," Warner said. "There were still some games early that I felt I played as well as I've ever played. It just seemed like it was for a half. ?
"Now, I think what's great about it is we've come together. We're playing good as a team in all facets, and we're doing it for 60 minutes."
The Cardinals returned 10 offensive starters from last season, with fullback Dan Kreider being the only new face. And he starts only occasionally. But it's foolish for any team to think last season's success automatically carries over to a new season, coach Ken Whisenhunt said.
"They (defenses) obviously played us differently early in the season," Whisenhunt said. "We have kind of adjusted some of what we do to compensate for that."
More teams are playing two-deep zone coverage against the Cardinals, concentrating on stopping receiver Larry Fitzgerald from getting deep. To counter, the Cardinals are putting Fitzgerald in motion more and lining him up in different spots to try to create mismatches.
Keeping safeties deep also opens up the possibilities in the run game.
"We have a full deck of cards, so to speak," Fitzgerald said. "We're balanced right now, running the ball effectively, throwing the ball effectively, keeping Kurt upright."
