I wanted to post something to help ease the concerns about obtaining a guy like Jamison. The knock on him is that he's 32 and will be 35 when the contract expires and he's going to make 13-15 mil a year each year. That's a lot of money to spend on an 'aging' star. I wanted to compare his numbers with other guys from the ages of 32-35. I selected guys who were close to his level of production at age 32 and saw how they aged. Now not everyone is a perfect match but this should give you some good perspective on how he will age.
Jamison is currently averaging 21 and 9 at the age of 32. Here are some comparrable guys from the history of the NBA.
Dan Issel: from 32-35 he average 21.5ppg and 7.5 rpg
http://www.basketball-reference.com/players/i/isselda01.html
Julius Erving: from 32-35 he average 20ppg and 6.5rpg
Yes I know Jamison is not DrJ, by no means am I saying he is, for one; Drj was a SF while Jamison leans more towards a PF than SF. But as you can see there aren't many guys in the history of the NBA who have been 21 and 9 productive at the age of 32. And the ones that did continued to produce those numbers through 35-36 yrs old.
http://www.basketball-reference.com/players/e/ervinju01.html
Elvin Hayes: 20 ppg and 11.5rpg
http://www.basketball-reference.com/players/h/hayesel01.html
Elgin Baylor: 25.5ppg, 11rpg
http://www.basketball-reference.com/players/b/bayloel01.html
Now I have put some big time names out there I know. Please please please do not infer that Jamison is just as good as Baylor, Hayes, and DrJ because he is NOT. I am just trying to show you that in the history of the NBA there haven't been many guys that produce big point and rebound numbers at age 32. And the ones that do, keep that production up for another 3-4 years.
Basically, Jamison has a good probability of being productive at the end of his contract.