Ruben Amorim’s quit threat as Man Utd boss sticks to guns after horror startDespite a challenging start at Manchester United, Ruben Amorim remains committed to his 3-4-2-1 formation. Six years ago, he faced a similar situation at Casa Pia, where a switch to a back-three formation turned his fortunes around. Amorim believes in his footballing philosophy and is determined to implement it at United, despite the recent setbacks.