To put it in more polite terms than I would have liked to, what makes you think the Villa job would have even passed the minds of Rijkaard, Ancelotti and Moyes? I'm sure Rijkaard and Ancelotti are chewing at the bit for the opportunity to work with Emile Heskey. As for Moyes, why would he make what is at best a sideways step, especially when it's a fairly well known fact that he is one of the favourites and Fergie's choice for the United job when he leaves?
If I was you I would be happy with Mark Hughes who is a very good upper to mid table manager, which is where you are as a club.