If it was me, based on what I've seen so far, I'd reshuffle the DL depth chart this way:
RDE: J. Smith; D. Evans
NT: A. Franklin; K. Mitchell
LDE: I. Sopoaga; K. Balmer
Yes, I liked K. Mitchell that much. He's got the size and the attitude, and plays hard. He's a rookie, so he may need to learn behind Franklin for a year, but put him next to J. Smith, and either motivate Sopoaga to play harder or replace him with Ray Mac, D. Evans, or RJF, and then you might have a 3-4 with a DL that gives you something.
I'd consider keeping RJF for depth, or PS if not. If R. MacDonald returns, and if he plays up to his past performances, then RJF to PS for sure.
PS for Egboh, who is way undersized, but showed some ability--PS and let him bulk up.
I'd let Sopoaga know he's in a competition. He's way too soft at NT. IMHO.