I'm kind of torn. I want Pietrus back, because he's such a team player, loves the Celtics, and is a useful and versatile defender; I also think he'd be better on offense this season after healing up during the summer. He has, however, been injury prone the past couple of seasons, and I hesitate to lose out on the potential of a young guy such as Joseph. Then again, we're in "win now" mode, and Pietrus is probably the better fit for that ...
You see what I mean?

I hope Dooling is back, because I believe we need a third PG, and a mentor to Rondo.
I'm also wondering if we should grab another big. I think our current six-man big rotation is great, but if there's a key injury in there somewhere ...
I do like the idea of saving the BAE for the trade deadline, since it might give us an advantage over other contenders in scooping up a key player midseason.
Part of me thinks it doesn't matter much who fills those last three spots, because they're probably not gonna play much anyway, but if we have a repeat of last year's injury woes, some or all of those last three could end up playing critical minutes. For my money, though, I'd go with:
* Dooling (solid third PG, Rondo mentor, Flexer extraordinaire)
* Another vet big (you can never have too many bigs, IMO)
* Joseph (less of an injury risk than Pietrus, and possibly part of our future)