For Sir Alex Ferguson, FA Cup glory was the springboard for success. Other Manchester United managers found winning the competition signalled their demise.
Tommy Docherty was sacked when lifting the Cup was considered no defence for having an affair with the wife of his club physio. Ron Atkinson lost his job the year after Wembley glory because he was no closer to ending United's long wait to be champions.
Most alarmingly for Erik ten Hag, compatriot Louis van Gaal learned his fate just minutes after his United team beat Crystal Palace in 2016.