That title is a slight exaggeration. At any rate, I caught this Q&A on Twitter last night from mystery writer Harlan Coben who was asked about his transition from adult to teen fiction:
Harlan Coben (@HarlanCoben) October 04, 2012
Heh, it ain’t that easy but readers will either agree or disagree with me… with their wallets. Seems though that most writers are stampeding into that market. Unlike most readers, I won’t be following you there (you being a general you and not the author specifically).