Out of all the guys with some trade value the only one that you definitely keep is Jake Long. Everyone else can go and I wouldn't care, but out of this entire team these are the players I'd def keep if I was the GM/Coach... Long, Pouncey, Bess, Gates, Davis, Wilson, Clemens, Odrick, Fields. Long and Pouncey are no brainers, Bess is a good slot WR who doesn't make a ton of money, Gates is a speed demon with potential and doesn't make much $, Davis I'd keep just because CB's aren't easy to come by and he's the best one we have, Wilson I just have a feeling about and he makes next to nothing, Clemens is cheap and at the least would be a very good backup, Odrick has shown some potential and is young, Fields I'd keep for obvious reasons.
I'd also like to keep Dansby but not at his salary, and as far as Marshall goes... well he has already worn out his welcome as far as I'm concerned. If I get rid of Marshall I def keep Hartline though because the odds of finding a #1 and #2 WR in one offseason are slim to none.