Chris Carson or another dart?

I have DJ, Palmer, Luck, and Arob among others. Looking for a dart at RB. My healthy RBs are Abdullah, Gore, T Coleman, Bernard, and Chris Carson.

Cohen, Javorius Allen, and Kerwynn Williams are available. Do I hold with Carson or drop him for one of the above?

Or should I look to make a trade? The James White owner only has 3 RBs…