I have really thought this over. If I am cincinnati, I send a huge offer to Marshall at 12:01am Friday. Why?
You have dire need at Wr, and you are expected to draft a Wr. Bryant won't be there....and you don't have any value in first round that matches Marshall's experience or physical abilities. I would do the deal with Marshall, make it too much for Denver to match...and send their first round pick and move on.