Lucas was never a great director. He just had the good fortune back in the early to mid-1970s to fall in with actors who could do far more with each other than just be 'Faster' and 'More Intense', particularly the young actors of that time.
I meant to say something about this yesterday...
He didn't 'just happen to fall in', he interviewed stacks of actors for the roles, wanting to cast unknowns. If you have ever seen the footage of some of the other candidates for Han, Leia and Luke you will realise how cheeseball, affected and dated their acting styles are, they play it like guest stars on Happy Days or Welcome back Kotter. He cut through the crap and got the right unknowns for the roles.
He might be crap at communicating with actors on set, but he knows the good from the bad and can cast accordingly.
But, nowadays, he'll cast Hayden C for Darth, part of the decline.
I have to agree about Shyamalan. He was really batting them out good with Sixth Sense, Unbreakable and Signs, which are my favourites of his. The village is a fine movie also, even if i am not as into it, it's still very well made.
Lady in the Water, I did not enjoy when I saw it at the cinema, but having revisited it and calmed down my expectations, I think it's actually not a bad little movie, unique.
The Happening, I have only seen once and enjoyed it, but it had some real bad things wrong with it, and in retrospect I'm thinking I gave too many things a pass. At least he was out there doing his own stories, but he probably needs to break up his method, and doing an adaption will hopefully be good for him and get him back on track.