Three weeks ago, the Minnesota Vikings were unbeaten and appeared to be the class of the NFC.Minnesota hosts the Detroit Lions on Sunday looking to just stay on top of the NFC North, and will do so with a new offensive coordinator.The past two weeks, in which the Vikings (5-2) scored 20 total points and averaged 270 yards of offense in two losses, has taken the shine off Minnesota coach Mike Zimmers Super Bowl-hopeful bunch.As the Vikings were getting set to prepare for Detroit (4-4), Vikings offensive coordinator Norv Turner resigned on Monday. Zimmer said he was very, very surprised by the move.He has helped me tremendously in the three years that Ive been here, Zimmer said. He has had an unbelievable career. He has been, really, my right-hand man, really, since Ive been here, and he decided it was in the best interest of him to do this, and I accept the reasons; and they are personal.Behind a faltering offensive line, the Vikings have the leagues second-worst offense. Minnesota is 31st in the NFL in average yards per game (293.3) and yards per play (4.6). The offense has averaged 19.9 points per game, tied for 23rd in the league.Tight ends coach Pat Shurmur is the interim offensive coordinator and will call the plays. Shurmur does have experience with quarterback Sam Bradford, who came to the Vikings in a trade right before the regular season began. Shurmur was the offensive coordinator and interim head coach in Philadelphia last year with Bradford, and the two were together in St. Louis as well.I think hes a great football mind, Bradford said. Really just looking forward to sitting down and talking to him and trying to figure out the direction in which were going to go...Halfway through the season, Im not really sure if you can completely change an offense and the terminology for everyone.Offense hadnt been a concern for the Lions, at least until Sundays loss at Houston. Detroit had 289 yards of offense, its second-lowest output of the season in a 20-13 loss. The 13 points were a season low even as the Lions welcomed back tight end Eric Ebron and running back Theo Riddick.Ebron returned after missing three games with ankle and knee injuries and had seven catches for a team-high 79 yards receiving. Riddick had missed two games with an ankle injury and had 56 yards rushing and 77 yards receiving with a touchdown against Houston.We just hurt ourselves, Ebron told the teams website. Penalties, we just hurt ourselves. Every game weve lost, weve hurt ourselves. So, weve got to, just got to clean up our act and win.Protecting Matthew Stafford will be an important factor against Minnesotas second-ranked defense. Stafford was sacked eight times in two losses to the Vikings last season.Thats what theyre known for, its what theyre really good at, Stafford told the teams website of the Vikings blitz packages. The last two times we played these guys we were a little different schematically than we are now.Well be able to take a look at them this week, study them hard and work to try and find solutions that will fit us.Detroit will also need to bring the pressure against Bradford, who has been sacked 11 times the past two weeks.Its something that I would like to see go down, Bradford said of the number of times he has been hit. I dont think its a positive thing. I dont think its a good thing. I think weve got to figure out a way to bring that number down.The Lions made one change, as well, trying to help their 23rd-ranked defense by acquiring cornerback Johnthan Banks from the Tampa Bay Buccaneers. Banks was a college teammate of Detroit cornerback Darius Slay at Mississippi State and the two were second-round draft picks in 2013.Banks will try to resurrect his career in a new spot.Meanwhile, Minnesota is trying to prove its season isnt slipping away.I do think that we hit a rough spot in the season and we need to get back on track, Zimmer said. So, unfortunately this is just some of the things that go on over the course of a season. Obviously, the season is a long time and not everything is going to go smooth, as Ive found out over the three years. So, well just keep trying to do the things we have to do to continue to get better. Wayne Gretzky Jersey . -- Al Jefferson found a groove just in time for the Charlotte Bobcats. Connor McDavid Jersey . -- The Bishops Gaiters are showing they belong among the countrys top varsity football teams. http://www.cheapoilersjerseyschina.com/andrew-ference-jersey/ . 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F1s Strategy Group rejected Halo on the grounds that not enough testing of the device had been carried out for implementation next year.That testing will begin in Belgium on Friday, with Nico Rosberg, Daniel Ricciardo, Nico Hulkenberg and Carlos Sainz all completing installation laps with the device during the opening morning of practice. Though installation lap tests are conducted at slow speed, it will give drivers an idea about visibility on an actual race track. Of special interest will be visibility up Spas daunting Eau Rouge corner, which goes down and up a hill into a blind dip in the road.Speaking about the test, Rosberg said: Ill do one run, which will be a couple of laps. That is enough to undersstand if its good or not.ddddddddddddI massively support the direction of improving head safety but Im not a fan of anything specific. Ill see how that goes to get an impression myself because I havent tried it yet. It needs to go on as soon as possible if it is good, but I can only tell you on Friday.Mercedes is confirmed to test the Halo in Belgium and Italy, meaning Lewis Hamilton will test it at Monza. Hulkenbergs Force India teammate Sergio Perez will also test it at Monza, though it is currently unclear whether the pair will be joined by other drivers.The Halo, which split opinion among drivers and fans alike, remains the only cockpit protection solution on the table, with the FIA dropping Red Bulls Aeroscreen proposal earlier this year. In Hungary the drivers were shown an FIA presentation on Halo which was compelling enough to change Lewis Hamiltons previously staunch opposition to the device. Discount NFL Jerseys Discount NFL Jerseys Jerseys From China Wholesale Jerseys 2019 NFL Jerseys Cheap Wholesale Jerseys China Cheap Jerseys Wholesale ' ' '