It was only a year ago that David Moyes, while still Everton manager, said he feared harsh economics meant the balance shift from Merseyside to Manchester was irreversible.
That he has played his part in proving that prophecy wrong, the prosperity of Manchester United and Manchester City now threatened by the visionaries down the road, is further evidence of why his first season at Old Trafford is ending in damnation.
The devil was in the detail of a comprehensive 2-0 win for his old club, Leighton Baines' penalty and Kevin Mirallas scarcely doing justice to the ease of the win.
It is the contrast between the Everton of Moyes and Roberto Martinez that is as worrying as the one between United of now and a year ago. There is a variety, speed of movement, flexibility of thought and sense of adventure at Goodison Park that was absent before Martinez's arrival. You could say Everton possess all those attributes United had before Alex Ferguson retired.
Moyes' record against the perceived "big four" was, at best, erratic - a trend he has carried into his first season at Old Trafford. The deposed champions were dire: ponderous in possession, with no obvious pattern of play and rarely a threat. This victory meant Everton had achieved their first league double over United for 44 years and virtually guaranteed they will finish above them for the first time since 1990.