Ruben Amorim, the new head coach of Manchester United, has been facing questions about his 3-4-3 system since his first week in charge.
Despite struggling to pick up results in the Premier League, Amorim has stuck to his tactics, training the squad to adapt to the 3-4-3 system.
Club owner Sir Jim Ratcliffe has backed Amorim, suggesting he will get three years to turn things around.
Amorim's ex-players have a clear verdict on his controversial 3-4-3 system.
Amorim's record in Portugal suggests he can make the system work, and he has the support of the club's owner.
Ruben Amorim faces scrutiny over his 3-4-3 system at Manchester United.