On the back of another strong defensive performance, the Denver Broncos find themselves at 5-0 and leading the AFC West. Denver is one of six undefeated teams, but each of those Broncos victories has been tense at the least and downright gut-wrenching at worst.

Even Sunday’s 16-10 win at Oakland required some last-minute scrambling as the offense couldn’t convert first downs down the stretch to ice the game.

The defense dominated again, remaining atop the NFL standings in total yards allowed, but they took some small steps back, falling out of the top spot in passing yards allowed.

The offense, for the second time this season, failed to score a touchdown and has now been unable to put the ball in the end zone in the first quarter of any games so far.

Yes, the Broncos are undefeated, and there are some major studs leading the way. But for a team that had averaged defeating the Raiders by a nearly 23-point margin during the Peyton Manning era, Sunday’s win proved there are some duds on this team that are cause for concern.