Is it still too early to give up on Felix Jones?

I have 6 RB's and 3 WR's on my roster of 17, and can play 2 RB's, 2 WR's, and a flex RB/WR each week. I really want to drop a RB to give me some more space (no trades in my league). I already have Maurice Jones-Drew, Knowshon Moreno (Injured), Mike Tolbert, BenJarvus Green-Ellis, Felix Jones, and his teammate in Dallas Marion Barber. I like Barber more but am worried Jones will break out, and RB has been my roster's only weakness lately with MJD struggling and Moreno injured. Is it bad to drop Jones now??