coordinator Mike McCoy a day after the team was blown out at home by the Denver Broncos on national television.First-year head coach Steve Wilks said Friday that quarterbacks coach Byron Leftwich will take over the job for a club that is 1-6 Youth Isaac Rochell Jerseys , the worst record in the league."Seven weeks into the season, based off where we were from the standpoint of production on the offensive side of the ball, I felt the need to make a change, and that's what I did," Wilks said at a news conference.McCoy, former head coach of the San Diego Chargers, was fired for the second time in as many seasons. He was let go after 10 games as Broncos coordinator last year.The Cardinals lost 45-10 on Thursday night, trailing 21-3 after one quarter and 35-3 at the half. Wilks called the effort "embarrassing."But he said his decision to replace McCoy was not based on that one game alone."We weren't productive enough," Wilks said. "Let's just say that, and that may be an understatement."The Cardinals have lost their first four home games for the first time since 1979, nearly a decade before the franchise moved from St. Louis to the desert.Arizona entered Thursday night's game ranked last in the NFL in offense and rushing offense and next-to-last in passing offense. The Cardinals have just 10 offensive touchdowns in seven games.Asked if Leftwich should be considered an "interim" coordinator, Wilks said, "Right now, it's hard to say anybody is going to be permanent."Leftwich is a holdover from the staff of coach Bruce Arians, who retired after last season and was known for his dynamic offense."You definitely want to be able to try to get David Johnson going in the run game as well as the pass game Isaac Rochell Jerseys Stitched ," Wilks said. "With Byron being here before and being part of that and understanding some of the success he's had in the past, hopefully we can tap back into some of the things David was doing in the past."Leftwich was a coaching intern when Johnson led the league in yards from scrimmage and touchdowns two years ago. He was promoted to quarterbacks coach last year and called plays in the preseason this year.Wilks has a coaching background entirely on defense. He was defensive coordinator of the Carolina Panthers last year. He entrusted the offense to McCoy, figuring the experience at head coach would help.But the offense sputtered from the beginning, especially in attempts to get the ground game moving.The Cardinals switched from Sam Bradford to rookie Josh Rosen at quarterback three games into the season and Rosen had a rough night against Denver, throwing three interceptions 鈥?two returned for touchdowns 鈥?and fumbling the ball away twice.Rosen was injured on his final play and was in a walking boot with a sprained toe on his left foot."He should be fine and ready to go next week," Wilks said. "We have 10 days and based off what the trainers are saying there shouldn't be any setbacks."The Cardinals don't play again until Oct. 28, when they host San Francisco.The 38-year-old Leftwich, a first-round draft pick out of Marshall, played quarterback in the NFL for 10 seasons with four teams 鈥?Jacksonville, Atlanta, Tampa Bay and Pittsburgh.Rosen has been Leftwich's primary project and the two already have a close relationship. Wilks talked about the need to streamline the offense."I think what Byron is going to do, from what he and I have talked about, is really trying to figure out what Josh does well," Wilks said. "That's the key thing. When you have a young quarterback, we want to make sure that we're putting him in a position to where he can go out there and not have to think so much. Those are the things that we've talked about."Wilks said Rosen is very intelligent Trey Pipkins Los Angeles Chargers Jerseys , that's not the problem."I think it's clarity," Wilks said. "That's what we need, and we didn't have that. We've got to have clarity in exactly what we're doing in certain situations."McCoy, who has worked in the NFL since 2000, was a highly successful offensive coordinator in a first stint with Denver, leading to him being hired as head coach by the Chargers in 2013. He was fired after four seasons with the Chargers. Watching Nick Chubb score on a couple of long touchdown runs and Baker Mayfield burn his defense on long passes made Oakland Raiders defensive coordinator Paul Guenther sick.His defense, which was so good at preventing big plays during his tenure in Cincinnati, is getting repeatedly burned by them in his first season in Oakland and is a big reason why the Raiders are struggling so much this year."I told those guys that my expectations are way higher than this," Guenther said Thursday. "If we can have teams going 12-, 14-play drives, get them in the red zone, hold them to three, that's what we have to do. We can't give up 60 yards on the grass where we can't catch a player. It's a matter of angles, a matter of speed to the ball to get the guy on the ground."The Raiders (1-3) haven't been able to do that well enough so far this season, contributing to three straight losses to begin the year and a 42-point performance last week by the Cleveland Browns that they overcame by scoring 45 points and winning in overtime.Chubb scored on runs of 63 and 41 yards for Cleveland. Mayfield threw a 49-yard touchdown pass and then had a 59-yarder that went down to the 1 to set up another score.In all this season Los Angeles Chargers Jerseys 2019 , the Raiders have allowed a league-worst five plays of at least 50 yards and are tied for second worst in the NFL by allowing 23 20-yard plays."We just have to eliminate the five or six plays per game that are dearly costing us," coach Jon Gruden said. "That's very uncharacteristic of our style of defense. We have to tackle better when we are in 1-on-1 situations. We have to eliminate the big plays."The Raiders are getting a boost in the secondary this week before they face longtime nemesis Philip Rivers and the Chargers. Rivers has more touchdowns and yards passing than any quarterback who has ever faced the Raiders.But Oakland will get some help at cornerback with the return of Daryl Worley from a four-game suspension for violating the NFL's policies on substance abuse and personal conduct.Worley has been practicing all week and is expected to be activated by Saturday to play against the Chargers. He will join a cornerback rotation that includes Rashaan Melvin, Gareon Conley and Dominque Rodgers-Cromartie."Daryl is a seasoned guy," Guenther said. "He was one of our best corners in the spring. When he got here in training camp, he's a tough guy. He understands the different techniques we're trying to teach. He understands the zone concepts we're trying to teach and the man concepts we teach. It's going to be a good added piece for us and a well-need piece."The Raiders signed Worley in April just days after he was arrested in Philadelphia and cut by the Eagles. Worley pleaded guilty in June to misdemeanor charges of driving under the influence, carrying firearms in public in Philadelphia and resisting arrest. That led to his suspension to start the season.Worley was a third-round pick by the Panthers in 2016 and had 150 tackles, two sacks, three interceptions and 19 passes defensed in 31 games.Worley has been able to take part in meetings the past four weeks but wasn't allowed to practice and could only watch the games on television."We need to have more effort," he said. "That's all around, all 11 guys, whoever it is out there on the field no matter who it may be. We need to fly around like we were in training camp on defense. Having more fun with the game, not so much worrying about the game plan and what the offense may be doing. Just executing our techniques and things."NOTES: RB Marshawn Lynch (shoulder) returned to practice. ... LG Kelechi Osemele was sidelined a second straight day with a knee injury.