Justin Fields knows the Steelers' offensive performance in Denver will keep him looking over his shoulder

The Pittsburgh Steelers are 2-0, and for the second week in a row, hold sole possession of first place in the AFC North.

Traveling west to beat the Denver Broncos, a win on the road means all the same despite how it looks.

Yet Justin Fields, Mike Tomlin, and everyone else associated with the team knows that kind of performance wont fly against better teams:

Fields didn't like the offensive performance against Denver

"I think we did enough to win," Fields told CBS after the game. "I don't think we played good enough as an offense at least. Our defense played great, came up with some big stops but we still have some work to do on the offensive side of the ball in terms of not shooting ourselves in the foot, self-inflicted wounds with penalties, and stuff like that. Overall we did a good enough job to get the win and we'll come in tomorrow and critique the film and go on from there but just glad we came out with the dub tonight."

Fields was solid on Sunday, as he didn't turn the ball over despite another bobbled exchange and two sacks taken. The first half was marvelous for Fields, but even then, and for much of the game, it was penalties that killed the Steelers' offense.

Broderick Jones played so poorly on one drive , that he was replaced by Troy Fautau mid-series, with the team continuing to struggle with holding calls down the stretch.

But the game just wasn't sharp enough in execution.

After producing 189 yards of offense and 13 first downs in the first half, Pittsburgh's offense only allocated 62 yards and 3 first downs in the second half, when the bulk of the penalties were behind them.

Now, as long as Fields is winning games, he has the upper hand on keeping his job, especially if he can have a full game that mimics the first half against Denver.

But if Pittsburgh is going to win against playoff teams, the offense and Justin Fields will have to produce more than 117 passing yards and 13 completions, no matter who's to blame.

Related: Steelers are waiving the white flag with recent first-round pick following Sunday in Denver