No offense to Sondheim, b/c I love him. He's an amazing writer. But if he had written these shows like Little Shop and Phantom and Wicked, musical theatre and Broadway would be a lot less popular. Sondheim shows are notorious for not being very big hits or very "mainstream," however brilliant they are. I think it's very valuable that the people who did write those shows actually did.
But if Sondheim did his own SEPARATE adaptations of those shows, I would love it. I wouldn't take away the original authors or shows, but if he just decided he wanted to do another adaptation like Yeston did with Phantom, I'm all for it. What if he had written Carrie? At least then we would know that it would be recorded.
Eeeeeeyyyyyyyyaaaaaaaannnnnddddd aaaaaaaiiiiiiiiyyyyyyaaaaaammmmmmmm teeeeeeeelllllliiiiiinnngg yyyyooooooouuuuuuuwwwaaaahh...