As for Man Utd, well, they are the best and they lead the way and what they've done with Moyes is really quite good. A 6 year contract for starters. What they are saying is that Moyes is long-term. Moyes would have taken a 6 month contract so I don't think 6 years has come from him. This is England's biggest and best club stating that they intend to keep Moyes for 6 years at least. If they have a disaster next season, then I think Moyes will be there the next season too. And if they had a bad season again, I think Moyes will still be there.
Moyes will be gone by the summer when MUFC fail to qualify for the CL.