The Cubs have gone though a lot of relievers the last couple days. And so:
Dillon Maples and Tim Collins have both been with the big league team this year with varying results. Personally, I think Maples could be a huge factor in this bullpen if he can command his fastball, because his slider is almost unhittable.
With Mark Zagunis sent down, the Cubs bench will have just three players available for the next few days, at least, unless the team has plans of recalling Ian Happ or adding someone like Cristhian Adames or Dixon Machado to the roster.
As always, we await developments.