For bench and role players in the NBA, March nights can feel like auditions.  Not the spotlight-soaked kind that is only reserved for superstars, but the raw, flickering moments that are held in the shadows of an 82-game grind, when the margins become razor-thin, the rotations unstable, and the cracks begin to show.  The latest five-game stretch for the Lakers has been exactly that: a stress test disguised as survival. At least one player has been missing in the starting lineup , and in some