It seems that you can only be a punk for so long. At some point, the snarl starts to wear thin, the fury mellows and those distorted chords don’t sound as powerful as they used to. The Sex Pistols’ Johnny Rotten changed his name and started to make noise-funk with PiL. X’s John Doe turned to country. New York Dolls frontman David Johansen became Buster Poindexter. So Jesse Malin’s recent switch from fronting the old-school glam-punkers D Generation to earnest roots-rocking solo artist isn’t as much of a surprise as it is a right of passage.