MEMPHIS, Tenn. — This question always comes up from time to time: Why is Andrew Bynum on the bench for the end of the Lakers’ games? The short answer is that Lakers coach Phil Jackson prefers Lamar Odom’s experience and versatility to Bynum’s size and relative inexperience during crunch time. Bynum grumbled about not finishing games a few years ago and Jackson snapped, “What does he know? He’s just a kid.” In time, Bynum probably will move into the coveted position of finishing games. That time is not now, however.