Keep in mind that it's still early in the off-season. There is still time for teams to bolster their roster with the remaining free agents or swing a trade that could improve their outlook from what we see now.
Winners
Atlanta Hawks
The Hawks were busy early by getting involved in the off-season's first blockbuster trade. New GM Danny Ferry had a lot of work to do to clean up the mess of his predecessors, who had built a team that appeared to have topped out with a second round playoff ceiling. His first move was to unload Joe Johnson's enormous contract on the Nets for a pile of expiring contracts. Johnson is an All-Star player, but not close to being worth the max contract that makes him one of the league's highest paid players. As his game begins to deteriorate, that contract will be a cap clogging albatross that could have hamstrung the franchise for years. Now it's someone else's problem. They also managed to unload Marvin Williams, a useful player that had become a disappointment after never living up to his high draft spot (remember, he was drafted ahead of Chris Paul and Deron Williams). They took back Devin Harris' expiring contract in that deal, meaning they will have even more money coming off their books after this season. These moves may appear to be a step back for now, but it sets them up for a considerable make over next season, when they'll have the cap space to chase an elite free agent or two. Atlanta native Dwight Howard is rumored to be one of their targets. Now that Brooklyn appears to be a long shot, would D12 give his hometown a look next summer? The Hawks could also entice Orlando in a trade this summer with a package involving Al Horford and Jeff Teague. Either way, Atlanta now has to be considered one of the top threats to obtain Howard, which should keep his friend Josh Smith interested in sticking around past this year. None of that would have been possible without first unloading those burdensome long term contracts, which makes their moves thus far a success.
Boston Celtics