Are you using the default roster or the NLSC roster, by the way?
It's fairly easy to make the computer GMs look like a fool. Usually I try not to pick on the computer too much, but here's a quick moves under the default roster that I was playing around with as the Warriors in dynasty mode:
Goal: Paul Pierce
1. Trade PF N. Tskitishvili, PF Z. Cabarkapa to the Celtics for SG G. Green, SF J. Reed (creates a need for backup SF)
2. Sign PG Damon Stoudamire
3. Trade PG D. Fisher, PG. D. D. Stoudamire to the Lakers for SF. L. Odom, PF R. Turiaf (in default rosters the Lakers have a big need for PG)
4. Trade SF L. Odom, SF M. Dunleavy, SF G. Green to the Celtics for SF Paul Pierce, PG M. Banks, C K. Perkins
Voila.. Paul Pierce (plus extra) for Mike Dunleavy, Tskitishvili, Cabarkapa, and some cap space (Damon Stouamire). You could probably make that last trade simpler.
This trade may not work all the time and remember that I was on default rosters; the computer sometimes declines a close trade, but you can just load a save of your team right before you do all these trades and do it again if you think it's close. Again, the computer is pretty dumb.. just take advantage of it.
*Edit: Was bored so here's a try on the NLSC roster: (doesn't feel right gutting a roster that was just made!)
1. Trade PF T.Murphy, PF Z. Cabarkapa, C A.Foyle to Chicago for SG K.Hinrich, SF T.Thomas (you need Thomas to make trades later because he has a lot of cash in his deal, allowing you to salary match better)
2. Trade SG K. Hinrich, PG M. Ellis to Phoenix for PF A.Stoudemire (I'd personally stop there, but we haven't gotten rid of Dunleavy yet.. let's grab another big man?)
3. Trade SF M.Dunleavy, SF T.Thomas, C A.Biedrins to San Antonio for PF T.Duncan
Ok, so you got both Duncan and Stoudamire .. and the only real loss from that deal was Murphy. You don't lose many core W's (Richardson, Davis, even Pietrus and Diogu are all still there). Look how bad the computer trades, it's unfair.
