Well, I'd do it because Vlad >>> Abreu. Gives you insurance in case (heaven forbid) Burrell can't pull it together. If he does, then you've got Burrell, Thome, Vlad in the 3-4-5 spot (not necessarily in that order), freeing up Abreu as trade bait.
Get Vlad, a starter, and a closer, and there's no way they miss the playoffs.