Toe
All-American
In reality, with all of the fronts, techniques and alignments used by modern defenses it usually boils down to what you want to call it. Almost nobody bases out of a 3-4 or 4-3 by personnel because so very much of football is dominated by 10 or 11 personnel. Many defenses have somebody as a hybrid of sorts, usually a LB/S or DE/OLB, and if they don't they have so many sub-packages as to make any idea of a base defense a moot point.
The very idea of a base defense goes back to when offenses primarily ran the ball and passing was the exception. If anything, modern shotgun oriented schemes have flipped that script. Many organizations that specialize in player evaluation have just begun generalizing based on task, because trying to figure out exactly what position a guy like JJ Watt or Khalil Mack plays is a pointless exercise.
Right. Like in the NFL these days, the real de facto 'base' defense for most teams is nickel, even if they're labeled 4-3 or 3-4.
Then of course, there's what Chinander himself said about his D: "Is there going to three down linemen? Yeah, maybe. Sometimes, sometimes not. The thing I don’t understand – you guys know more about it than I do now – you know, there's a three-technique, a five-technique and a one-technique. This guy's got his hand on the ground and now it's a 4-3. Now he's standing up and it's a 3-4. It's going to be a multiple defense. Sometimes it'll be four guys with their hands down, sometimes three."
In short, don't get too worked up about the labels.