No, but there are lots of dumb teams out there. Dallas, really just Jerry Jones, is reportedly enamoured with McFadden because of the Arkansas connection and might pull out all the stops to get him.
I think McFadden is the best player in the draft. I also think running backs are a likelier bet than quarterbacks, at least in this draft. However, Miami needs a quarterback and are set at running back with Ronnie Brown.
Vic Carucci makes the same point in his mock draft:
Mock draft: Are Dolphins thinking Long and hard at No. 1?
He interestingly touts Chris Long as the first pick.