I agree that the Brewers should make a push for Greinke, but I think the odds of Weeks being extended get lower and lower by the day as winter rolls on. Honestly, I tend to think that if it was going to happen, it would have happened already. Hopefully I'm wrong. Anyway, my point is that aside from Gamel and Cain, who have already reached the majors, Lawrie is the only potential impact bat we have in our system. I would be very loathe to trade him for two years of Greinke, and would certainly not say he's expendable. His bat plays at third and the corner outfield as well as second. I would hope we'd have enough ammo to get Greinke without Lawrie. With the anti-haul the Marlins got for Uggla, it's possible.