Might change for them under Moyes, I don't think he had a fair crack of the whip at Man Utd and Ferguson didn't pick him as a successor for nothing. I wouldn't hold much weight to his not doing that well in Spain either, I think he was probably just not suited to playing in that league and didn't have the domestic knowledge behind it to make it work on a shoestring over there. Mind you, I thought Martin O'Neil was okay until he managed the mackems so it's not like I've not been wrong before about a manager's ability
He didn't even bother to try and integrate himself into the local culture though, so to me that's a big negative on his part.