Just watched Kyle Draper's interview with Jeff Green. He continually said "we" when talking about the bench, I could be wrong but it seemed like he was confirming he's not going to be a starter.
If he's coming off the bench at $9 million, I would think he plays a 6th man, Lamar Odom type role.
The only issue is he's better as a 3 than a 4 but I don't see him getting a ton of minutes just backing up PP at the 3.