I mean, the team needs a backup PG for sure...and a 3rd big (probably PF) who can be a main part of the rotation with JV/Amir, and a 4th big who has C size but isn't immobile like Gray. Gray and Acy are good as bruising/hustle 3rd stringers.
The team has to turn Bargnani into at least a backup PG or 3rd(whether he or Amir starts) big. Then use the MLE to get whatever is missing.
I know if it came to PFs, my #1 MLE target is Carl Landry, if he opts out. If he doesn't, I might actually not bother using the whole MLE on someone. Maybe try to get a couple of depth bigs from guys like Brand, Wright, Clark, Hickson, Turiaf, etc..
I'm really digging Mo Speights as a 3rd big or starting Pf. Or someone like Brand or Jefferson who can smash dudes around in the paint and grabs some boards.
"You never heard of DeMar just google him, the defense don't know what to do wit him"