Sounds like Mickael Pietrus would love to be back in Boston, though I'm not sure how much interest the Celtics will have in him. I enjoy Pietrus as a personality and I appreciate his defensive efforts, but his offensive game was (as advertised) very one dimensional and when the 3 pointer wasn't falling, there wasn't much value there. So look for the Celtics to look for younger, more athletic wings.
With that said, I think I'd miss Mickael's personality. For example, see this video of him interrupting a Bass interview to thank Boston fans.
On a side note, read his quote and tell me that free agents wouldn't be drawn to Boston if only to play with Doc Rivers.
"Doc, to me, is like a dad," said Pietrus. "I came here, he took me under his shoulders, treated me like his son, and that's why I was so grateful to the Celtics this year, and so grateful to the players, too. So, hopefully I'll be back under his shoulder again next year and do it again. I just want to play hard for my team, play hard for Doc, because he has respect for me, I have respect for him -- and that's what it's all about for the franchise, respect."
It is a shame the free agent market isn't very good this year. I'd love to see our pitch to some top name players.