Shocking deal, is Marion that much of a distraction in Phoenix or did he just badly want to leave. Trying to understand the logic of bringing Diesel here considering how oft injured he is as well as how out of shape he is!! Seems like a better deal for the Heat.
from yahoo sports
"Marion, weary of being third fiddle to Nash and Amare Stoudemire, asked to be traded before the season began. He didn't get his wish and, although he refused to talk publicly about it, remained unhappy with his role. "
Also the article says they needed a big man inside and Shaq fitted this catagory
"Their interior defense is among the NBA's worst. Kerr apparently felt that without a large presence inside, Phoenix could not combat the big men, such as Andrew Bynum and Tim Duncan, in the playoffs. "