Look how far he has come, the second-round pick with the famous last name whose fans admired him so that they would croon his name with an eerie howl.Out-of-towners were forgiven for interpreting the arena-wide hum for boos. However, when Luke Walton strode onto the floor Tuesday night in Anaheim, for his first exhibition game as the coach of the Lakers, there was no mistaking the group of fans near the Lakers bench, who warbled, "Luuuke.