Vikings linebacker Chad Greenway said the defense under new coach Mike Zimmer will be mostly a 4-3 alignment, as it was under the previous coaching staff, and not a 3-4 as has been speculated.
"We'll look like a 4-3 defense, which is what we are for the most part," said Greenway, coming up on his ninth season with the team. " Of course, Coach Zimmer and Coach [George] Edwards are very good at manipulating the front and making it look different.
"But really, you're going to notice the biggest difference in our coverage. We used to sit back in a zone the majority of the time, for the past eight years, basically. Now we're not going to be doing much of that at all. We're going to be playing a lot of matchup stuff. That makes defenses a little more difficult to learn. There's a lot of moving parts to each defense, and they're all a little different, and you just have to work through those kinks. And now is the time to do it."
While 2013 was not a good season for the Vikings defense, Greenway said: "We had some good years in that defense that we ran. Having said that, obviously, Coach Zimmer has had success wherever he's gone. I'm really not one to question his ability to coach, and he's done an awesome job coming in, and his defense is proven to work. I think the biggest thing is guys believing in the right thing and working together."
Greenway, a first-round draft choice out of Iowa in 2006, said he believes the coaches are trying to get a feel for how the players fit into the system. He has started at outside linebacker his entire career but could wind up playing some at middle linebacker this season.
"Coach Zimmer has also preached just being flexible," Greenway said. "We're only going to dress five or six [linebackers], and you're going to have to have the ability to play multiple positions. We'll see how that all shakes out.
"Starting [at outside linebacker] over my entire NFL career and in college, it's definitely a different perspective. It's amazing how everybody thinks it would be the same. The reality is, there are a lot of differences in it. The assignments are obviously different, but you're also taking on different kinds of people when you're taking on blocks. You're taking on a lot more guards … and of course you're playing in the box. You've got to play downhill. So there are different requirements, but very similar to what I've always done."
Greenway welcomed the return of Jasper Brinkley, who played with Arizona last year.