ORL can take Posey, Okafor, and Paul for Carter, Gortat, Nelson.
They can then add in a bunch of picks (two firsts.)
Nelson, Carter, Peja, West, Gortat
with Collison, Julian Wright, and Songalia off the bench. I think there will be teams interested in all of those players, so they'd be in a position to keep making moves, but wouldn't have to since the salary is manageable and they are all 1 or 2 year deals.
An example follow trade they could make to cut salary:
J. Nelson and J. Wright to ATL
M. Williams to BOS
Sheed's Retiring Contract to NO
plus they could pickup a few picks in the move (or AB) - I would see BOS throwing in a protected first round pick (something like top20 protected for three years, then a 2nd rd pick.)