Yes, the Diamondbacks bullpen is a very hot topic. Jack wrote yesterday about how the bullpen has regressed and (in this author’s words) very much overachieved in the first half of the season. Last week, it was noted that Archie Bradley may not be as good as he appears due to his lack of elite strikeout numbers (or even a second pitch). Brad Boxberger has fallen off a cliff. Et cetera, et cetera.
And as such, this is baseball and it must mean there is data that might be able to help explain what’s happening.