So Greg Oden's off to the Heat on a 2 year deal. He's still only 25 and hasn't played in the last 2 years. He's only played 82 regular season games and 6 playoff games so effectively 1 entire season since he was drafted in 2007, ahead of other centers... Noah, Al Horford, Marc Gasol, Tiago Splitter.
I'm guessing he's on a small salary so a very low risk/high reward deal, he's had 2 years off with rehab so I'm guessing he wouldnt be back if his knees hadnt improved.