Would more blueline scoring help fix the Preds’ season?

Last season we were all riveted by Roman Josi who, by scoring 96 points in a single season, became the highest scoring defender since Phil Housely in 1992-93. This year, however, Josi leads a defense core that is not setting the world on fire with its offense. In fact, last Thursday night I was informed by the Tampa Bay announcers that the Predators’ defenders were ranked 31^st in the league in offensive production. To me, this warranted a larger investigation, so I gathered data about offensive production by defenders in the league to try to figure out what is going on and how much it might matter.