The Browns switched to rookie Johnny Manziel at quarterback for Week 15 against Cincinnati, and their whole offense went in the tank as a result.
Clearly, their passing game struggled with Manziel throwing for just 80 yards, but what gets overlooked in all the hullabaloo is the effect on the running game. With the Browns unable to move the ball, achieving just five first downs on their 38 plays, the platoon of Isaiah Crowell and Terrance West didn't get much of a chance to contribute. Crowell ran seven times for 17 yards, down from 14 for 54 in Week 14, and West ran five times for 23 yards, down from 15 for 54.
And the Bengals aren't even good at stopping the run. They entered the day ranked 27th against it.
This is a problem for Crowell and West owners. Crowell in particular had emerged as a fringy start in 12-team leagues as the better scoring threat of the two, but without even competent quarterback play, nobody's doing any scoring.
The Browns visit the Panthers in Week 16, who rank in the middle of the pack against the run, but if Manziel is starting that game, you should probably sit Crowell and West in Fantasy.