I think they would be better off leaving Lebron on Hedu. As long as the offense runs through Hedu....they will keep Lebron on him to deny Hedu getting the right pass to the right person. EVEN if they were to switch Lebron on Rashard...do you honestly think Anderson can KEEP UP with Hedu?? Nope...
...match-ups ....that what it comes down to.
LeBron was guarding Rafer Alston if I remember correctly.