It seemed like Danny's goal this summer was to sign as many quality players as possible so we did have trade chips. Unfortunately, most of those players aren't panning out and their contracts are too long, so they actually have negative trade value [see Bass, Terry, and maybe Green]. Signing Terry at the time seemed like a great move, but in hindsight, it seems a little unbelievable we didn't give that same contract to a guy like Mayo.
I really don't know what is going to happen with Terry. He was pretty psyched to come here, but he just isn't the same player he used to be. Sending him off so quickly sends a bad message to other veterans thinking of Boston as a destination, but he and Bass are the obvious choices to trade away.