Rafael Dolis and James Russell are expected to share the Cubs' closer role based on matchups following the demotion of Carlos Marmol. Because he's right-handed, Dolis figures to see the bulk of the save chances for the Cubbies for the time being. While he does throw hard, Dolis has had control issues throughout his professional career, and he doesn't have any consistent secondary pitches. We're not confident in his or Russell's ability to hang on to the job over the long haul, but they're both obviously worth picking up for the time being.