Theo Epstein and the Chicago Cubs could have an issue in the rotation for next season. Both Jake Arrieta and John Lackey are exploring the free agency market and are not expected to return for the 2018 season. If that ends up being the case, the Cubs will need to bring in two more starters via trade or free agency.
Alex Cobb is one free agent that the Cubs have been connected to since the start of the offseason, as MLB.com mentioned. There is a very good chance that he will end up signing with Chicago, although there are quite a few other teams that are pursuing him as well.
Looking ahead at the trade market, there are a few starting pitchers that could be perfect trade targets for the Cubs.