Marion has been hurt and unhappy with the losing teams that he's been on... of course, his lack of contributions were a big part of the losing in Miami and Toronto, but I expect him to bounce back with Dallas. Of course, "bounce back" is relative. His PER was still reasonably good with both Miami and Toronto... it's not like it dipped down to Frye-like levels. If he's healthy I think he is capable of making an impact, and I kinda laugh that people don't think he'll improve a team that started Antoine Wright, Gerald Green and Devean George a combined 82 games last year. Ed O.
Marion will play much better with Kidd as his PG. This is a good fit IMO. If it actually happens then Dallas gets better. Portland now 5th in the west on paper.
Marion was a star before D'Antoni joined the Suns. I think Marion has declined due to injury and age. Granted, this would be an early age to decline, but his game is almost entirely predicated on his amazing athleticism and if injuries have sapped his explosiveness, his whole game is going to suffer.
Yeah, I agree he was good before D'Antoni. But I think D'Antoni's system took him, and maybe his ego, to another level that he probably couldn't fulfill. He's going to have to change his game up a bit since he can outjump or outrun every player anymore.