Engaged with multiple teams in trade talks for Josh Smith, the Hawks are struggling to get the assets they are seeking for the prospective free agent, league sources told CBSSports.com Tuesday.

Hawks GM Danny Ferry has told prospective trade partners he is not interested in taking back future salary and he won't do a deal "just to do it," one person familiar with the discussions said. The Hawks have been in conversations with many teams about the 27-year-old forward, with the most persistent conversations happening with the Suns, Bucks, Celtics and Nets.

Ferry has prioritized youth and multiple draft picks in talks for Smith, but in the NBA's new financial paradigm, potential trade partners are insisting on sending future salary to Atlanta with those assets, sources said. The deadlock could improve the Nets' chances of landing Smith and reuniting him with former Hawks teammate Joe Johnson, one of the sources said.

Yahoo Sports reported the Nets have offered Kris Humphries, Marshon Brooks and either a first-round pick or the rights to Croatian Bojan Bogdanovic. It's a deal the Hawks know will still be there all the way up to Thursday's trade deadline, but not necessarily this summer when Smith becomes an unrestricted free agent. As a team that far exceeds the NBA's new luxury-tax apron -- at least $4 million above the tax line -- the Nets could not acquire Smith via a sign-and-trade this summer unless they shed significant salary prior to or as part of the deal.

This is part of the dilemma for Ferry, who will have fewer potential trade partners for Smith in the offseason. The Hawks believed Phoenix would be a logical landing spot before the deadline, but the Suns have proceeded cautiously and are reluctant to give up the kind of assets Atlanta is seeking for a complementary star who has not displayed the inclination to be a franchise cornerstone.

Another team linked to Smith is the Bucks, who are "definitely active," according to a rival exec. Milwaukee has to decide whether it will make prospective restricted free agent Brandon Jennings available with the point guard having previously expressed that he's doing his homework on bigger markets. Jennings recently changed agents, leaving Bill Duffy and signing with Jeff Schwartz, a noted proponent of added endorsement and exposure opportunities that bigger NBA cities provide.