Knox is a tough guy who is pretty fast as well. But I dont think a person can learn how to catch a football at 25 yrs old He is what he is.
I see Singletary improving.His problem is lack of breakaway speed plus he goes down too easily. At his height and being over 200 LBs he should be blasting for extra yards more often after the hit.This is one of the few areas that RBs can improve on with age.
Cody Ford is a guy with the potential to be an elite OL. Expect great improvement/consistency this yr.
Ed Oliver...Thats a tough one. I would like to see the coaches put him in a position that isnt pure nose tackle more often. Unless he gains 20 LBs(and would that slow him down?) he just doesnt have the size to be a NT in this league.