Well, to be fair, he came in banged up from the week before with a calf, so he was a somewhat risky start to begin with. What's most amazing about this offense is that they have some really good playcalling early on and have some success. Then they seemingly forget what they were doing and change everything.
Either that or the other teams seem to be adjusting VERY quickly to what the Rams are doing and we can't adjust to the changes they put into place.