The follow-up album, "Mob Rules", featured new drummer Vinny Appice. Personality conflicts began emerging within the band. "Ronnie came into the band and he was doing whatever we told him, basically because he wanted the gig. The next album was a little different," Iommi recalled. In 1982, conflict arose over the mixing of the "Live Evil" album. Iommi asserted that the album's engineer began complaining to him that he would work all day long on a mix, only to have Dio return to the studio at night to "do his own mix" in which his vocals were more prominent. This was denied by Dio. The conflict led to Dio and Appice ultimately quitting the band later that year.