Erik ten Hag’s willingness to accept Jason Wilcox’s tactical suggestion that he use Bruno Fernandes as a false 9 in Manchester United’s FA Cup triumph against Manchester City was a key factor in the Dutchman being retained as manager.

While it was Ten Hag’s call, his decision impressed Sir Jim Ratcliffe as evidence he can work within the minority owner’s new football structure.

Fernandes played a vital role in Kobbie Mainoo’s winner at Wembley, his break from the withdrawn position allowing him to make the assist for the 39th-minute strike.

Wilcox was appointed as United’s technical director in April, charged with creating an overarching vision of play for the team. Fernandes had operated as false 9 in the last two Premier League games of the season, the wins against Newcastle and Brighton, for which the regular centre-forward Rasmus Højlund was dropped.

As Ten Hag considered his tactics for the FA Cup final, with reinstating Højlund an option, he decided the best approach was the ­suggestion of Wilcox, a former City ­academy director that Pep Guardiola’s ­possession‑based game could be countered by the false 9 system.

This proved correct as United’s victory against the Premier League ­champions was arguably the finest display of Ten Hag’s two years in charge. Having also adopted the tactic for the wins against Newcastle and Brighton, the manager’s ability to be flexible earned the admiration of Ratcliffe, Wilcox and the Ineos‑owner’s key ­lieutenant, Sir Dave Brailsford.

As Dan Ashworth, who Ratcliffe appointed as sporting director, remains on gardening leave, Wilcox will lead transfer recruitment in the summer window which opens on Friday, and he will work closely with Ten Hag on improving United’s squad.

On Tuesday, Ratcliffe, who controls United’s football operation, ended his review of last season by concluding that Ten Hag should continue in his job. The 54-year-old Dutchman is now negotiating a new contract with the club, having a year left on his ­current terms.