first, you would only trade Prince if you expect him to be more like the 2008 version than the 2007 version, going forward. 2nd, A 50 HR guy is worth more to a team than any starting pitcher. 3rd, Cain isn't that good, though he is very young. He walks a lot of guys, and he's a flyball pitcher which doesn't bode well for Miller Park. I'd rather have Parra than Cain over the next few years. 4th, Lincecum has been great this season, but it's only a 1/4 a season, and I really don't think he'll hold up well over many seasons. so, in short, I wouldn't mind having L&C on the brewers, but I'd be sure I was not overpaying for them, and any trade that includes Prince would likely be overpaying.