Trading for "proven" pieces is an awful idea, look at the teams that go and make a big trade at the deadline, the Tigers did it with Price, the A's did it with a lot of players, and those moves rarely pay off. If a team's scouts like a player, and they are lower on someone from within the organization that other people are higher on, that is when you use pieces to get major league talent that you think will help you in the pennant race, but it all comes down to scouting, you just don't trade for someone because they are popular with bandwagon fans, (those players are commonly known as "superstars"), you trade for a player because you and your scouts think that player x is better than player y, and you are higher on them than your trade partner, because when teams make a trade they usually think that they came out better, they just don't throw away players, which some of these trade proposals on this thread have had the Twins doing. But like I said, it all comes down to scouting, look at how the Giants built there world champion teams, and look at the Cardinals, they didn't just go acquire a bunch of all stars, they traded players that they were low on, but other teams were high on for unheralded players, and when the Giants did go out and make the big trade (Carlos Beltran), it was one of their worst moves in recent history. The Twins are pretty high on their prospects, and from a scouting point of view they should be, but if the Twins scouts think that a certain player is going to actually help the team become a world series champion, and they could part with certain prospects and still win the trade, but meanwhile make the other team think that they are winning the trade, then they should go for it, but if you like player x, and the other team is asking for a bunch of prospects that combined you are higher on than player x, it is stupid to give in just to get the player, because if you believe that the prospects are better than player x, you shouldn't trade for the player, because you actually believe that you are losing the trade. When teams make trades they want to come away as the winner, not even, and definitely not the loser.