The American only joined the Merseyside club in December 2015, but has left suddenly with no official reason given yet as to why he departed.

Vint left his position just six days after hiring a new head of academy coaching, Dave Adams from Swansea City.

He was hired during Roberto Martinez's reign as Everton manager, but the Spaniard has since been replaced by former Barcelona player Ronald Koeman of The Netherlands.

"Peter has left to pursue other interests," an Everton spokesman said, according to the Daily Mail.

"We wish him well in the future."

It is reported that Vint's son, 15-year-old Will, was on trial with both Everton and Manchester United earlier this month where he impressed coaches.

Vint joined USOC in 2005 where he served for four-years as their senior sports technologist, working with several sports, including Nordic combined, cycling, swimming, bobsleigh and skeleton, on a variety of sport performance projects.

He was promoted to the role of high performance director of the organisation in 2009, responsible for high performance planning, monitoring and service integration for swimming, athletics, shooting, equestrian and weightlifting.

Those sports went on to win 64 Olympics medals at the London 2012 Games.

Since London 2012, Vint served at USOC’s senior director of competitive analysis, research and innovation.

Formed in 1878, Everton were founding members of The Football League in 1888 and has competed in the top division of English football for a record 112 seasons.

They have won a number of major honours, including the League Championship nine times and the FA Cup five times.

However, Everton have not won a major trophy since 1995. 

The best-known player produced by Everton's academy is Wayne Rooney, who left the club in 2004 to join Premier League rivals Manchester United for a then record transfer fee of £25.6 million ($37.8 million/€34.8 million)

He has since gone onto become England's record international goalscorer. 

Last week, it was confirmed the club had agreed deals for a new stadium, which has been earmarked for potential use at the 2022 or 2026 Commonwealth Games.