After one veteran, Troy Glaus, failed, the Braves try another veteran.
I feel like Derrek Lee is one of those guys fans easily forget was ever a Brave--probably because of the thing you pointed out as this being an okay trade that neither hurt nor benefitted either team in the longterm.
Such a big recognizable name for so long and by the time he got to Atlanta he was a shell of his former self. Much like Troy Glaus, in a sense. Ken Caminiti and Rico Brogna come to mind too. Garret Anderson, but I suppose he worked out better than the aforementioned. I'm sure every franchise has their fair share of guys fans will forget ever wore their team's uniform and cringe when they are reminded of it....at least Lee kinda just makes you go "Oh, yeah...that's right. Meh."