For example, if a long ball is played into the right channel for Rasmus Hojlund to run onto - which prompts a wing-back, one of the tens and a midfielder to step up - when possession is conceded back to the opposition they end up being overloaded and exposed on the other side of the pitch.
The raw numbers tell a story of Fernandes being the star man of Man Utd's team, with six goals and seven assists in the Premier League and 23 goal contributions across 39 games in all competitions this season.
Against Ipswich he would often move into the back three, therefore creating a four, which paired with Ugarte drifting out wide it ends up allowing the opposition to have many extra numbers in attacking areas.
But in his duty as club captain, Fernandes is actually taking on too much responsibility and is therefore disrupting Amorim's system which is actually quite rigid with defined roles for a number of players.
MANCHESTER UNITED are looking to find a silver lining in their woeful season by winning the FA Cup but will need to beat Fulham in the fifth round on Sunday to move a step closer to that goal.