I would trade the following for Gortat
Melo...Suns don't really have a need for Sullinger with the veteran Scola and the young Morris backing him up. Melo would also be able to get major minutes on the Suns, backing up JO, as he is definitely better than Zeller
Lee or Terry...This is tough. Lee has been playing much better of late and I love his size (6-5), youth (27), and athleticism compared to Terry's. However, Terry is a clutch shooter and a proven playoff performer. Plus, he is said to be very good in the locker room. Still, the lack of size of a 3 guard rotation of Rondo, Bradley, and Terry do concern me. If matched up with Miami, who covers Wade when Bradley sits? So I would prefer to part with Terry.
1st rd draft pick...I do not want to part with the 2014 1st rd pick. That class is loaded, while the 2013 one is subpar. I would prefer to give up the 2013 pick, plus a future heavily protected 1st rd pick (say top 25 protected ) instead.
So in a nutshell it would be Melo, Terry, 2013 1st rd pick (non-protected), and 2015-19 1st rd pick (top 25 protected) for Gortat.
We would then be left with one roster spot in which I would use to sign Delonte West to make up for the loss of Terry, as I like West more than Barbosa.
Starters-
KG
Pierce
Gortat
Rondo
Bradley
2nd Unit-
Bass
Green
Sullinger
West
Lee
Deep Bench-
Wilcox
Barbosa
Collins
Maine-
Joseph
Sent packing when a target/good piece becomes bough out-
Varnado