Hindsight is 20/20. Had we retained Dalembert, we would still be "win" that trade. We will probably be better off in the long run having a Hayes/Dalembert type next to Cousins anyways (both for style of play and for the veteran guidance).
It would, of course, be nice to still have Hawesome on the roster, but I'm happy he's finally putting it all together somewhere else.