1. Small mentality
First and foremost comes Moyes' small mentality.
Having managed Everton for more than a decade, Moyes was expected to finish in mid-table or maximum top four. But the scenario is different at Old Trafford.
Man United are a trophy-winning team. They compete with the elite teams of Europe and if Moyes cant instil back the winning factor in the team, life for him in Manchester will be be terrible.