Ben Johnson is pretty new and has new ideas. Nine years ago Sean McDermott was new and had new ideas. New ideas, if they are good, have a big advantage because teams haven't adjusted to them. When a coach sticks with the new idea until they become old ideas that teams have figured out then that coach is not as good as he once was. In the case of the Bills the defensive scheme seems like an antique. I think the Ravens face the same problem with Harbaugh. And the Steelers with Tomlin. All of these coaches are past their peaks.