Ralf Rangnick is still searching for answers at Manchester United, with the German coach winning just four of his eight matches in all competitions since taking charge at the beginning of December.
The 63-year-old initially favoured a 4-2-2-2 system upon his appointment but in United's most recent match against Aston Villa, he opted for 4-2-3-1 and seemed to revert back to the version of the Red Devils from last year under Ole Gunnar Solskjaer.
Player availability largely dictated the switch - with Cristiano Ronaldo and Marcus Rashford unable to feature - but the change in shape did seem to maximise the impact of a certain Bruno Fernandes.