As far as optimism goes, optimistically I hope the Celtics can get rid of Gerald Wallace to free up cap room and sign Jimmy Butler as the future wing, sign Kevin Love as the starting power forward, and Marc Gasol as the center. Thats my most optimistic improvement plan because it turns the Cs into a contender in the east. And heck I hope we can trade up our picks to get in the lottery and get someone like Stanley Johnson or maybe even WCS. Then re-up Crowder and we got ourselves a phenomenal squad!
Realistically though, that's a different story...