There's a lot going right for the Pirates at the moment. The starting pitching has been excellent, leading all of baseball in quality starts. The bullpen has been the best in baseball in terms of WAR and win probability added. The offense is getting contributions from just about everyone and they had a historic 33-run output against the Rockies this week. There are plenty of reasons why, at the time of this Mound Visit's publication, they have the best record in the National League.
And, oh yeah, they're running the bases really well, too.
Feel free to consider this as just a subsection of the offensive turnaround, but it deserves more recognition.