I was thinking something very similar and then read this post! Rick Rubin would be perfect. She really needs someone to reign it in and to maintain quality control. If she's gonna do another album of recycled, dreary songs where she sounds like she recorded the vocals underwater with a cold again she can keep it.
Either that or work with Guy Sigsworth again without Joe Chiccarelli shitting all over it.
She atleast still has one album in her that will completely blow us away. Since then it's been Flavors. But I truly believe she can deliver quality once more.