The Cubs are trapped. Either they pay Wood, they let some of the younger guys take the ball, or they trade a middling prospect for the likes of Gregg. All and all, I'd try to keep wood, but not for 4 years. However, THE very last thing I'd do is trade for Gregg. He's going to push Marmol to the 9th eventually b/c he's going to blow too many save chances.