United won't go for Moyes. Never in a million years. In fact no club in Europe in the Premier League would take a serious look at him should Wenger, Mancini, Fergie, Ancelotti etc go for several reasons. He's not got a good record in the transfer market with decent money, he's not got a good record in Europe, and he's still yet to win anything with us. He's not the kind of manager who would inspire big name players to join the club, and forgive me David, you've done well here, but he's tactically inept.
Redknapp, McLeish, Coyle, O'Neill and probably even McLaren are ahead of Moyes in the queue for those jobs. Celtic would be an interesting job for him, might be the easy route, but its guarenteed Champions League every year, fighting for titles and cups even if its only in the SPL. Did O'Neills career no harm at all going up there.