The question posed is a good one, but can be refined: How can the team that leads the league in scoring miss the playoffs? The answer: Count the ways.
1. Breaks. We didn't get them this year. And in the category of breaks is avoiding injuries and otherwise keeping your players on the field. Too many injuries by far. A defensive end indicted for a major crime before the season. And at times the ball just didn't bounce the right way.
2. Special teams. After a season and a half, we finally find a placekicker. But having one matters in close games.
3. Defense. Statistically, in the low average category. But produced too few big plays. And melted at key times at the end of games when a key stop was needed. This defense needs an identity and playmakers. At this time, it has neither.
4. No short yard running game. You have to be able to consistently convert when you need 18 inches. Too many times, we didn't.