This would be better addressed in the Draft, Trade, Keeper and Waiver Questions forum, but I'll give it a shot anyways. I like the trade for you. There's no better pitcher in the game than Johan and Cordero is an immediate upgrade at RP. The only place you really lose out here is at SS. Renteria is a significant dropoff from Young, but a lot of people like Renteria for a bounce back year to his STL numbers. I think you have plenty of power on offense to take care of letting Young go. If I were you however, I'd see if you could maybe trade him a 1B instead of OF as you have 4 guys who qualify there in Helton, Utley, Tracy, and Sexson (and likely Lopez pretty soon after the season starts). I don't like Green that much, but he's a little bit of an upgrade over Dellucci. If you can get him interested in one of your 1B, I'd like that a lot better for you.