Not to sound jaded, but money is pretty much always in the picture somewhere. That doesn't make them all bad people, that's just the way the business goes.
A little bit of both, but he's pretty much out of it and in his own little world. The sad thing is, other people have proven that the problem is indeed him, as everyone who touches the Star Wars franchise at this point (even Lego) has done a better job than the last 3 movies. Even Detours looks better.
Well, in the case of Mahna Mahna, is that really so much remaking it as it is trying it out for different productions?
Yes and no... seems that he hit the perfect version when it hit The Muppet Show. Meanwhile, the Sesame Street one is boring by comparison.