JRich  for Antawn jamison. I think this is a great deal for both teams and I will tell you why.

Good for Cavs because:

-JJ Hickson is the big man for the future, Jamison was taking minutes away from him. He becomes the starter and is given the chance to show what he can do and have a breakout year. 

-Since the Cavs are rebuilding, there isn't room for a 34 year old making 13 million for 2 more years. Richardson's contract is expiring next season giving the Cavs cap space and flexibility to build a contender. 

Good for Suns because:

- This western conference division is stacked. If the Suns want to remain a competitive team, they need a consistent low post presence. This could be the Suns last chance to win a championship. By adding Jamison they get one of the most skilled post scores in the NBA and a fantastic rebounder. They also get a very hard worker, veteran leader, and locker room presence. The Suns get a consistent 18 pts and 8 rebound guy. 

- Jamison is versatille and I believe would be a good fit with Lopez. They form a great rebounding tandem. Also both can shoot mid range(Jamison can shoot 3s)and score inside. 

- After this season JRich is gonna want to get paid. He will probably be overpriced and the Suns won't want to overpay him. Theres a good chance they'd let him walk. So instead of getting nothing for him they get Jamison for 2 more years. The CBA is looming and instead of paying Richardson big money and paying for it, they get a quality big and don't get affected by CBA since by the time its in full force his contract will be expiring.