I'd be OK with acquiring Sessions, as long as it's with additional assets and the return is Green. Cs can't trade Lee or Terry right now IMO, and can't trade Bass unless they get a big back a veteran big in return.
Something like:
http://espn.go.com/nba/tradeMachine/?tradeId=andhrzf
We only have 2 SFs and we have 3 SGs.
Why do you think we can trade one of our SFs more than our SGs? Especially when Green ends up playing a lot of SG/PF anyways just to get him on the court.
Minutes and depth, basically. On the one hand, I don't see trading a backcourt player for another one, considering we only have 3 guards to begin with. Moving to SF, assuming we all believe this team will make the playoffs, Pierce is going to play 35-40 minutes a game -- Taylor (and Biyombo) could soak up the remaining 10. And my feeling on Green is if he's forced to play major minutes at PF in the 2013 playoffs (or ever, really), this team is 100% doomed.
Anyway, this is mainly just a vehicle / excuse to get Biyombo -- who I believe could be a sneaky good LeBron defender, at the very least in spurts. As I've said before, I think Charlotte is absolutely clueless on how to use the guy. He could really blossom in green.
I think Sessions is generally underrated, but it's hard to make sense of how the Cs would acquire him given their existing depth chart and contracts. Again, trading Lee or Terry for sessions straight up is pointless. I suppose you could send Lee with Melo for Sessions and Henderson, but that doesn't feel like a substantial upgrade.