If I hadn't lost Charles for the season and Steven Jackson wasn't banged  up, I'd do it for sure.  I'm trying to get some depth back at RB, and  trading Wells kinda defeats the purpose.  I don't mind taking a chance  though.  CJ may or may not be a ticking time bomb.  Can you throw in  another guy like Boldin into the mix?  If so, I'd toss in Danario  Alexander.  Tossing around ideas here. 
You sure you don't want Jay Cutler? (joke)
edit: to be clear it'd be CJ + Boldin for DJax + Wells + Alexander.  It's one idea.