New producers for Stevie? Is she too difficult?

[mikephxaz]

The topic of potential producers for Stevie was brought up in another thread. My question is whether it's Rick Ruben or Don Was 0r Jimmy Iovine....is Stevie considered to difficult to produce? Does she take to long to record in the studio? Does she not take enough risks? Is her voice considered to be too limited? For some reason she seems to be unable to produce an entire album with one single producer except for IYD with Dave. I enjoyed her music with Dave. Someone mentioned Rick Rubin. Ricks work with Johnny Cash and Jack Blacks work with Loretta Lynn was amazing. I wish Stevie would consider challenging herself even more. Really pushing the edge.