Panthers take defensive tackle Vernon Butler at No. 30

Dave Gettleman can’t get enough hog mollies. Despite having a pair of young starting defensive tackles, the Panthers General Manager added another one, using the 30th pick on Louisiana Tech big man Vernon Butler. The Panthers just picked up the fifth-year option on 2013 first-round Star Lotulelei, and want to extend 2013 second-rounder Kawann Short.…