"I think each and every down we might look different on defense," Bettcher said, via Art Stapleton of The Record. "But again, I'll tell you what -- I can't tell you today who we're going to be on defense and really what we're going to look like until we get through training camp, until we get into meetings, until we actually get on the field, until we don't just play some basketball on grass in the offseason program. Until we get to training camp and we have helmets and pads on and we're striking and separating and playing off of blocks and what we're really going to look like. But yeah, there are certainly some 3-4 principles if that's a term we want to use. There are certainly some 4-3 principles if that's a term you want to use. At the end of the day, it's about playing hard with a relentless mindset, playing fast, playing physical and being a smart football team."