From what I've seen, (limited in both cases, granted) Pavlovic is a better player than Jeff Green.  And by far, a better defender.  Wouldn't he be a better match up vs Carmelo?  Green is getting abused on the defensive end, and looks like a deer in the headlights on the offensive end.  
I know that move would be a political disaster for the Celtics, given that this is the player we gave up Perk for, but it just might cost us this series!
I wonder if Danny would ever give Doc the green light to let this happen?