The Royals have used the bullpen as a warm blanket the last few years, riding the dominance of "HDH" - Kelvin Herrera/Wade Davis/Greg Holland" - all the way to a pennant in 2014 and again in 2015. Gone now are Davis and Holland, leaving Kelvin Herrera to serve as the backbone to a new batch of bullpen arms.
Can the Royals continue to have a dominant pen, or even a good bullpen? Herrera should be able to slide into the closer's role without too much issue, as he did when Davis served two stints on the disabled list last season.