IMHO--and I was absolutely wrong about the Shutt situation (not knowing that Armistead and others were legit targets)--I would take Payton and Pittman if Pittman or Brown were willing to slide over to DB if necessary, but things would start to get crowded.
We are really thin at RB/WR/CB/S. I think we all know the kid's natural positions, but in terms of needed depth, this would give us:
RB:
1. Mahone
WR:
1. Greenberry
2. Payton
3. Ferguson
DB:
1. Shephard
2. Darby
3. Poole
4. Turner
Hybrids:
1. Prosise
2. Baratti
3. Brown
4. Pittman
You could divide those last 4 kids a lot of ways depending on if Agholor, Marshall, or Russell came. You could also give Darby time at RB, though I don't think he wants it.