Three pitching coaches in three years I'm sure hasn't helped. Darvish, Chatwood, and Edwards being bad shouldn't be a surprise to anyone. Who knows what Hamels will provide this season. Hendricks you would expect to be solid. Lester you hope can keep pitching well but has a lot of mileage on his arm. Quintana was a horrible trade. Epstein gave up more for him than the Red Sox gave up for Sale and a year and a half in he is your fifth starter coming out of Spring training. Montgomery being so bad is a head-scratcher. They really aren't developing pitching or position players through their system. The signs have been there.
It’s not sustainable in that the Cubs won’t win many games if the bullpen keeps doing that.
It’s not sustainable in that it will be literally impossible for the bullpen to continue to post an 11.47 ERA. It will get better just by bringing in AA kids and free agents off the street. Maybe it will only be a 6.00 ERA and not a 3.00 ERA, but that would still be far better than what we’ve seen thus far.
If there’s a bright side to this disaster of a start to the season, it’s that Jason Heyward looks like a completely different player at the plate. This is his longest stretch of quality hitting since he became a Cub.