Can a wheel reinvent itself while it’s still rolling? Sounds like an impossible task -- but you never want to say “impossible” to Asleep at the Wheel, the famed western-swing, boogie, and roots-music outfit that’s, amazingly, still on the upswing. That’s saying something, too, considering the group’s been around for nearly 40 years, turning out an incredible 25+ albums while playing an unrelenting schedule of one-nighters that would make a vaudevillian dizzy.