A Corey Maggette + Anthony Morrow trade package sounds very interesting to me.
No need to trade Ray to get them.
To get both of them? I think so.
Also, financially it makes things simpler next season.
assuming they'd do it to dump maggette and not out of hope to keep ray after this season, it can certainly be done.
I don't think the Warriors will be willing to give up anything else with Maggette in a deal for the Celtics other expirings. Or any other team offering a similar package.
They might consider it for Ray Allen though. Not for good reasons. Just because he's Ray and he has a big reputation.
Then again, they might not part with Morrow even for Ray. Might have to include a first round draft pick which is fine with me. A first round pick would likely be enough on the other trade package too in that case.