Two late goals from the Hammers in their final game at Upton Park left United two points behind local rivals Manchester City, and needing the Citizens to lose at Swansea on Sunday.
Many saw last night’s collapse as a death knell for the Dutchman, who has continued to frustrate the United faithful in his two-year tenure.
Jose Mourinho is 2/7 to be in the Old Trafford dug out on the opening day of next season, but despite enjoying a dinner date with Sir Alex Ferguson this week, Mauricio Pochettino remains an outsider for the job.
The Tottenham boss is 5/1 to swap north London for Greater Manchester, the same price as PSG manager Laurent Blanc.
A Ladbrokes spokesperson said: “Victory last night could have bought Van Gaal another season, but in tandem with his side’s defensive collapse, the Dutchman’s reign is reaching a drab and underwhelming conclusion.”
United could still land a Champions League spot, but they’ll need to beat Bournemouth this weekend.
Whatever happens at the weekend, it’s increasingly unlikely Van Gaal will be around next year to find out.
All Odds and Markets are correct as of the date of publishing.