The problem with that is we can't trade them now. They are free agents. We will have to do a sign and trade. The time to trade them was before this year's trade deadline.
Personally, I would like to keep them both. I think both of them can be valuable pieces for a championship team. A championship team needs a strong bench.
But, dumping salary (i.e. Jeffries and Curry) for 2010 is more important and the only way we can dump salary will be to use Nate and Lee as trade bait. It's a tough choice an I understand your argument.
F**k, that Curry trade was the worst trade in franchise history. All the draft picks we lost and now he's gonna screw us out of rebuilding.