My thoughts and the keys to this game. All games come down to matchups. The biggest matchup is the Rams OL vs the Browns front 7. Specifically in the run game. The Rams will need to establish the run game to open things up for Foles down the field.
The Browns have a stout yet unspectacular front 7. The absolute key to the Rams success running the ball will be getting their OLinemen out in front of the plays and identifying and taking out Karlos Dansby. Dansby is an elite LB IMO and he can single handedly shut down the Rams running game if he is not accounted for.
In the passing game the Rams need to speed up the tempo of their play and get the ball out of Foles hands quickly, especially if Cleveland is showing blitz. The Rams had a terrible day at Green Bay because they had no answer for Green Bays blitzing. With a whole extra week to gameplan, the Rams surely have implemented some protections and hot reads to counter the blitz because in a copycat league we are very likely to see the Browns blitz early and often to test out Foles and see if the Green Bay game was an anomoly or if he is really that bad vs the blitz.
Defensively I think the Rams match up very favorably against the Browns offense. The Rams need to keep Josh McCown in check. This should not be very hard to do. The Rams have the shutdown corners to cover the Browns mediocre receiving corps, and the Rams have the DL talent to get the pressure on McCown. The Browns OL is not too bad and I would expect to see some blitzing out of the Rams if the front four has trouble getting to McCown. Keeping the pressure on McCown will be key, as he has a habit of crumbling under pressure.
I expect to see the Rams come out of the bye week and put it all together. Rams 27, Browns 13