part of the problem is that there aren't really that many holes to fill. the 1b and 3b have obviously been fine. soler is supposed to be a cornerstone at RF but he hasn't been great, but you're obviously not going to pull the plug on him. russell hasn't been that bad at 2b, although he's been bad the last month. montero isn't going anywhere; fowler was supposed to be a reliable .750 ops in cf but has disappointed. castro is supposed to be good and is signed to a long term contract. so really the only position that's not occupied by a young player or a supposedly-reliable veteran is left field, and coghlan and denorfia really aren't bad out there. the most likely trades are either to dump castro - but how likely is it to find a 2b/ss with a big bat - or to give up on fowler and acquire a cf who isn't playing terribly. neither of these solutions are that easy, especially with a lot of teams out there waiting until the deadline to determine if they're buying or selling. btw the cubs are still a couple of games clear in the wild card and just finished off a solid month against a tough schedule. let's not act like they're in total collapse here.