I always base my trades on need. Not Flash. Consider how your team will bat with out these two bats in the line up everyday. I have Ortiz and know he has been a monster this year. I am not sure of the other because I don't have him.
But also looking at your starting Pitchers I see you have some quality starters.
Kershaw, Lee, Lynn, and even Gee have been awsome. I know that Oswalt is not up yet and your waiting.
Both pitchers being traded are great pitchers also. But I don't know if your league is custom heavy on pitching or bats or is equal split. That would make my decission easier knowing that.
Also I am guessing if you grabbed these guys you would jettison others in the pitching area and pick up some nice bats sitting on the waiver wire?
Pitcher heavy and waiver wire adds are there I would say why not.
Even and waiver maybe.
Even and no waiver talent pool is a no.
Bat heavy is a no. You have enough talent in pitching.
Good luck