Don't look now, but the bullpen has actually morphed into a strength of this Cubs team.
Even though things got hairy in the 15th inning as Sunday afternoon turned into Sunday night, the Cubs relief corps still hung on by the skin of their teeth.
That wild 15th inning casts a bit of a darker shadow over the bullpen as a whole, but remember, this is a group that held the Diamondbacks scoreless for almost an entire game's worth of innings — from Brad Brach replacing Jose Quintana with two outs in the sixth inning to two outs in the 15th when Kyle Ryan gave up a 2-run single to Caleb Joseph.