https://www.bbc.com/sport/football/articles/cd9qvdg57n0o
"Nobody here underestimates the significance and the impact of one single error," said chief football officer Tony Scholes said.
"We know that one single error can cost clubs. Points and results can cost managers positions, potentially players their place."
In
Erik ten Hag's case, that was literally what happened - one of the four mistakes was the penalty given against his Manchester United side in what proved to be his final match in charge.


