With the BoSox signing John Lackey to a deal worth about $85 mil over 5 years, they have more than likely taken themselves out of the running for Bay or Holliday. They may be looking for a different,cheaper option for outfield production. Bradley could be an option. Now, i don't know what pieces would be exchanged, but its defiantely something thats worth looking into.
In addition to this, I am not quite understanding why the Cubs need to wait to sign a CF until they move Bradley. If the thought is they are moving Bradley to free up cap space, then how does acquiring another bad contract (Burrell, Rowand) free up any money?