Manchester United did what they had to do following their mauling at Old Trafford against City. A draw was not good enough and a defeat would have heralded talk of a slide.
Everton are always tough to beat and United have failed to do so at Goodison Park since their 4-2 win in 2007. Early last season they threw away a winning position.
Given the scant resources and lack of money at Everton, David Moyes does an excellent job week in week out, season in season out. His teams are always very well organised. They play with heart.
And so it was today. He could reasonably claim to be unlucky not to share the spoils, given their share of the attacking. But unless you score you don't win.
Meanwhile Sir Alex is still unable, for a variety of reasons, to field his first choice team.
So what did he and his team do right today that they failed to do last week? And what smart changes did he make to produce the result that everybody at Old Trafford needed?