There does seem to be something missing from this Man U team. Fergie's teams played with 100% committment, I'm not sure Moyes will be able to replicate that.
Man Utd's team itself under Ferguson were no great shakes. Other 'big' teams last season were horribly inconsistent, and Man Utd's opposition wilted in the face of the psychology of Man Utd, before they'd kicked a ball.
Ferguson's intimidation going is massive, IMO. The team was nothing special last season, and I think it will show this time around.