The Denver Broncos are fielding what is clearly the best, most complete defense in the NFL, as this unit is able to do everything well, but the best thing they do is get to the QB. With 46 sacks on the season, they lead the NFL and are on pace to break the all-time sack record.
However, many have complained about the inconsistent offense, and it wasn't just a Week 10 performance that they reference, as the unit has failed to sustain much success during the season, needing multiple fourth quarter comebacks to get where they are.
But building a complete NFL team is quite the challenge, so every single Super Bowl team has had flaws, and that isn't going to change.