GRAND FORKS — NHL teams love to analyze Stanley Cup winners and look for trends. There's one emerging on the back end right now. The two defensemen who the Carolina Hurricanes used the most on their run to the Stanley Cup were 6-foot-5 K'Andre Miller and 6-foot-3 Jaccob Slavin. The Florida Panthers leaned on 6-foot-4 Seth Jones, 6-foot-4 Aaron Ekblad and 6-foot-1 Gustav Forsling during their back-to-back Cup runs. The Vegas Golden Knights looked…