LAS VEGAS — The Raiders rolled out the red carpet for Klint Kubiak on Tuesday, surrounding their new head coach with franchise legends ranging from Marcus Allen to Howie Long, and a star-studded podium featuring multiple Super Bowl rings and enough Hall of Fame jackets to fill a walk-in closet. In front of Kubiak sat a contingent of current Raiders that included young running back Ashton Jeanty. Every one of them was eager to hear from a new boss just a few days removed from helping lead the