Make them throw in a prospect say...a Scott Sizemore, or a Matt Joyce, then I would. But trading a young, cheap valueable arm for a free agent to be EXPENSIVE SS is NOT an ideal trade, IMO. So again, if Detroit is willing to throw in a solid prospect with Renteria, then yeah I would Marmol for Renteria/prospect. But the first goal, should be to trade Dempster before considering moving Marmol. Marmol is a reliever. Renteria fills a massive gaping hole. It's a no-brainer. Yeah, he fills a hole. But to plug up that hole by trading possibly our best reliever? Who also makes $9 mil less? No dice, unless they throw in a decent prospect. If Wood craps out and/or someone gets hurt, the pen becomes thinner without Marmol there. Marmol is still a reliever and is going to max out at 70-80 innings this year. If we were talking about an ace starting pitcher, that would be one thing. But we're talking about a reliever (and believe me, I love Marmol). If the Cubs even had a semi-decent shortstop in place, then I'd keep Marmol. But Renteria is a huge upgrade over Theriot/Cedeno. Also if the Cubs pen was weak, I might rethink this. But the Cubs are solid in the pen and could certainly survive without Marmol. Yeah they wouldn't be as good but they would, without a doubt, be a better team by adding Renteria and subtracting Marmol. The point I ws trying to make is....Marmol is not even making half a mill, whereas Renteria is making nearly $10 mill, so if the Tigers want to make that trade they would have to add a prospect to the deal to be "worth it" for the Cubs.