I look at this game as playing with house money in a sense- not a must-win game but a huge opportunity. If you look at the schedule and count up some possible/likely wins, you might look at Miami, NYJ, Jags, Texans, Washington, Philly and that gets us to 9 wins. The 10th could be this game OR Cowboys at home OR @ Chiefs OR a sweep of the Jets OR a win at New England*. It sure would be nice to beat Cincy, generate confidence and create margin for error but it's not something we absolutely must do right now. I want to see Shady 100% so he can help us win the above games.
If he really is good to go and there isn't much chance of a re-injury then sure, go ahead and free McCoy. Just be smart about it.