With LeBron James and Carmelo Anthony officially opting out of their contracts, multiple teams have begun the process of exploring roster moves that would create sufficient salary-cap space to try to sign 2014's marquee free agents in tandem this summer, according to sources close to the situation.

In addition to the Miami Heat's obvious desire to retain James by any means necessary and pursue Anthony if he urges them to do so, sources told ESPN.com on Tuesday that the Cleveland Cavaliers and Atlanta Hawks are among the teams already mulling potential trades that designed to clear enough cap space to be able to recruit the two stars and close friends.

The Los Angeles Lakers, meanwhile, had begun exploring such machinations even before the opt outs of James and Anthony had become known, according to ESPN.com's Ramona Shelburne.

Shelburne reports that the Lakers have been trying in recent days to package the No. 7 overall pick in Thursday's draft with the expiring contract of Steve Nash (who's owed $9.7 million next season) to free up enough room to offer James and Anthony at least $16 million each next season to join forces with Kobe Bryant.

As of now, no team that is believed to have any sort of shot at luring James away from the Heat possesses enough cap space to add the two stars at representative salaries. But there are more than 15 teams projected to have significant salary-cap space this summer, raising the possibility that several will try to offload multiple players in conjunction with the draft to create flexibility in the same manner that the Heat did in 2010 to create room for their historic free-agent haul.

James' Heat teammates from that haul, Dwyane Wade and Chris Bosh, have until Monday to notify the Heat whether they will follow suit and opt for free agency on July 1 or opt in for next season's salaries.