I have OT, OG, RB, WR x 2, TE2, LB, and possibly CB. This may be the first year in a while that I'll leave safety out of it. Butler's play allowed Chung to resume the same role that he had in 2014 and he's effective in that role. WR x 2 may change depending on whether or not Lafell's ineffectiveness in 2015 was due to the fact that he was still recovering from injury. If he can round back into 2014 form, only one WR is needed and the team may look to fill that through FA as opposed to the draft.
Some prospects I've been watching thus far:
OT/OG - Shon Coleman, John Theus, LeRaven Clark, Cody Whitehair, Christian Westerman, Josh Garnett
RB - Alex Collins, Derrick Henry (may vault into solid 1st round status though), Jonathan Williams, Kenyon Drake, Kenneth Dixon, Kelvin Taylor
WR: Braxton Miller, Michael Thomas, Will Fuller so far
TE2: Hunter Henry, Austin Hooper, Jerell Adams
Obviously, still a lot of work for me to do. But those are the guys I have been looking at thus far.