This just isn't borne out in the data though:
Man Utd 1-6 Man City, next game Everton 0-1 Man Utd
Newcastle 5-0 Man Utd, next game Southampton 6-3 Man Utd, next game Man Utd 1-2 Chelsea
Chelsea 5-0 Man Utd, next game Aston Villa 3-0 in League Cup (although we beat Watford 4-1 in the next league game)
Man Utd 1-4 Liverpool, next game Fulham 2-0 Man Utd
Barcelona 4-0 Man Utd, next game Aston Villa 1-2 Man Utd
Man City 5-1 Man Utd, next game Man Utd 0-0 Sheffield Wednesday
Tottenham 4-1 Man Utd, next game Man Utd 0-0 Aston Villa
All the talk of 'there will be a response to this' was all just that, talk, and doesn't reflect the reality. In reality, SAF used to be extra cautious in the next game to try and avoid defeat.