CF is the biggest problem, but the whole outfield needs to be addressed. Jacque has played more than 1000 major league games. He has never hit lefties, and, although he's had a few good at-bats against lefties this year, his overall numbers against lefties will continue to be very poor. Murton has a little more than 100 at-bats against lefties in his short career, and he has an OPS of more than 1.000. He doesn't fare as well against righties. I wouldn't mind seeing a Murton/Jones platoon if the Cubs were able to sign a bat for RF and someone who hits better than a pitcher for CF.