He didn't exactly leave Mercedes on his terms. I would imagine that he feels he has a point to prove, Ferrari have the resources and budget to allow him to that. He could also work things so that he spends the rest of this season building his team and developing next years car, let Mattiacci take the flak from the tifosi for them being shit this year. He could then arrive next year with a competitive package.
He be very attractive to Ferrari because he will have a good knowledge of the Merc engine.
He didn't exactly leave Mercedes on his terms. I would imagine that he feels he has a point to prove, Ferrari have the resources and budget to allow him to that. He could also work things so that he spends the rest of this season building his team and developing next years car, let Mattiacci take the flak from the tifosi for them being shit this year. He could then arrive next year with a competitive package.
He be very attractive to Ferrari because he will have a good knowledge of the Merc engine.