We'll see how it goes. I'm still cautiously optimistic about this year. The Cubs aren't going to win 100 games, but to your point, there's not a great team in the Central this year, and the Cubs could still have the potential to win 90-95 games. Teams remake bullpens all the time in an offseason (Cubs have done it more than once) and they still (at least as of this moment) have KB, Contreras, Javy and Rizzo. Schwarber was a very good hitter the 2nd half of last year.
I'm going to withhold judgment until I see who is playing CF/2B, who is batting leadoff and who fills out the rotation....then we'll see how spring training goes. In the past, Theo has done a good job of getting under-the-radar/relatively cheap pitching in the past and he may well go back to that strategy this year by finding a serviceable starter for a relatively low cost (see Feldman, Hammel and others). Maybe Chatwood can be a key piece this year, either in the back end of the bullpen or as a starter. He was significantly improved last year.