Andre Kirilenko - the AK-47.
Andre wants to play PF but is stuck at SF much of the time in Utah, with
Carlos Boozer... er... Al Jefferson, and Paul Milsap crowding the rotation at PF. AK also wants to start, and be a major offensive option, but Jerry Sloan has him coming off the bench, and uses him primarily as a defensive specialist. In the past, AK has publicly asked for a trade (he subsequently recanted). So, I think AK would welcome a chance to change teams, play his favored position, and be a bigger part of the offense.
Utah is well into the luxury tax again, after trading for Jefferson without giving any salary back, and signing Raja Bell as a free agent. This trade would save them something like $6.5M when you figure the luxury tax into it. It would give Utah the high-quality starting SG that they've been seeking. And, because Richardson is an expiring contract, they would have less to worry about after the season, heading into the probable lockout, and possible hard-cap in a new CBA.
Phoenix (badly) needs an athletic PF who can finish at the rim, run the floor, and play some defense. AK fills all of these needs. Although we would be taking on an additional $3M or so in salary, we would remain under the tax threshold with the trade. Kirilenko's contract also expires after this year, so the future is not compromised by such a move.
Now, I know that this is unlikely to happen in the summer. Sarver has already said on KTAR that they're adding a 3rd string center and that's it for acquisitions. But, the possibility of a mid-season trade looms.