Randy Houser’s debut introduced a man who never does anything halfway. When he rips into a rough-edged rocker such as the workingman’s howl “Boots On,” he puts his all into it. Taking a long, hard look at the state of the world with “Back to God,” Houser throws every ounce of soul into an impassioned, power-ballad plea for piety. And when he lays out his mission statement over greasy, bluesy riffs on the steamy “My Kinda Country” (“Little bit of Waylon, whole lot of Motown”), the agenda’s tough to deny.