Debating the same thing for two standard leagues. Currently have Ben in both leagues, but thinking of hedging by starting Foles in one of the two.
In the first league, I'm down 6 points and playing against Jesse James.
In the second league, I'm down 45 points and my opponent is finished. I also have LeVeon, Martavis, and Hopkins (note: two other Steelers).
My thinking is that Ben has a lower floor than Foles given how bad Houston is, but that Foles has a higher ceiling. I'm favored in both cases, so it might make sense to stick with the less risky option (Ben). However, if Ben has a bad game (i.e. below10 points), I likely lose both match-ups.
There's just no telling which Foles shows up (or if last week was a fluke), and it feels a bit risky throwing him out there with everything on the line.