I had brought it up elsewhere, earlier, but the way I see it is that the Cubs have a lot of names who *could* comeback, but how they'll be back, and where they'll be back is up for debate.
Between Cabrera, Brown, Steele, you probably hope one is in the rotation, one is in the pen in September, and if you get all three in any capacity, it's a major win.
Between Palencia and Maton, you hope one of them gets back to being a mainstay at the end of a bullpen. Both have different questions as to whether or not they do.
Between Peterson, Rea, Assad, and Taillon you probably need one to eat innings in the rotation, and one to be a long-man.
Wiggins is a wildcard. Could end up anywhere.
Rollison, Webb, and Ferguson look like bullpen keepers. You hope or or two of the Thielbar, Thornton, Pomeranz, Hollowell cast of arms can stabilize and force you to keep them.
In the end, you're probably left needing:
1 playoff starter
1 reliever you put in the 7/8/9 mix immediately and keep him there.
1 reliever in the 6th inning mix that you buy fairly cheaply and if he ends up off a playoff roster, so be it.