[seelenjaeger]

Why does Portland ship Wallace ->

Portland is that far over the Salary Cap, that even by Clearing the Wallace conctract off the books won´t create any capspace. So they risk loosing him for a warm handshake and some smelly smoke ...

Why is Dallas shopping Jamison instead of Walker ->

Walker has the higher trade value. Why? Because his contract expires sooner, and - opposite to Jamison - he plays "some" defense. Trading away Jamison would give the Mavs more flelixbility if it doesnt work, since both Walker and Wallace will come off the books soon. Then again, if the Mavs are not at least eyeing a sign-and-trade in the summer, Wallace needs to be paid aswell ...