It's been mentioned before, but I would have most definitely drafted Perry Jones over Fab Melo. I understand the logic that in a few years, Fab could be a valuable piece if he develops nicely. And if that is the case, he could be a very valuable trade chip. But that is so far away from happening, and I just think that Jones would have been able to play immediately and contribute to this team.
All in all it was a great offseason for the Celtics, but that would be my only change. I would have also liked to see a decent backup PG to Rondo, but I don't think that is a very big issue right now.