The problem is that CEH is already RB14 without Bell on the most explosive offense in the league. This is underperformance. Bell will have an opportunity and this is an explosive offense with several playmakers opening up the field for him, i think if he has something left in the tank he can pretty much runaway with it. Jets were just so bad, its likely that there is plenty left in Bell still.
Now conversely if Bell is toast, it will likely render both CEH and Bell non-startable imo. There is no way I see Andy Reid treating LeVeon like Adam Gase did in NYJ.
I think CEH is a sell high just based on his performance and what is to follow.