I don't enjoy writing that name next to the Rams offense, but the truth of the matter is that Foles and company get to face the crummy Steelers' defense.
This game is going to go one of two ways. Either the Steelers jump out to an early lead on the heels of a strong passing attack and the return of Le'Veon Bell, and the Rams need to air it out in order to catch up, or the Rams defense holds up and Foles still gets to tee off against a terrible secondary.
The Steelers are actually rated as being good against the run with a positive 4.6 grade from ProFootballFocus, but their pass defense is in the bottom three with a cool -14.8. Yuck. I think the horrid Steelers' secondary outweighs Foles' mediocrity, and it could pay off in a big way.