Lucas doesn't like directing, but he's good at it. The one thing he's not good at is disciplining himself to limit CGI, and he benefits if he hires a good writer - which he doesn't do very much. The fact that he directed the prequels shows that he was willing to go the extra mile - he didn't have to. I hope to see some new talent from Lucas in the future ... and not just Indiana Jones 4 - in fact I wish they'd just drop the idea for a new Indy movie entirely, they've waited too long (Harrison Ford is older then Lucas for crying out loud).